Month | Data | Change | Unit |
---|---|---|---|
December, 1973 | 305 | 0 | Billion Cubic Feet |
December, 1974 | 16 | -289 | Billion Cubic Feet |
October, 1975 | 196 | + 180 | Billion Cubic Feet |
December, 1975 | 162 | -34 | Billion Cubic Feet |
September, 1976 | 182 | + 20 | Billion Cubic Feet |
October, 1976 | 65 | -117 | Billion Cubic Feet |
November, 1976 | -133 | -198 | Billion Cubic Feet |
December, 1976 | -286 | -153 | Billion Cubic Feet |
January, 1977 | -361 | -75 | Billion Cubic Feet |
February, 1977 | -281 | + 80 | Billion Cubic Feet |
March, 1977 | -111 | + 170 | Billion Cubic Feet |
April, 1977 | 4 | + 115 | Billion Cubic Feet |
May, 1977 | 94 | + 90 | Billion Cubic Feet |
June, 1977 | 122 | + 28 | Billion Cubic Feet |
July, 1977 | 156 | + 34 | Billion Cubic Feet |
August, 1977 | 152 | -4 | Billion Cubic Feet |
September, 1977 | 174 | + 22 | Billion Cubic Feet |
October, 1977 | 265 | + 91 | Billion Cubic Feet |
November, 1977 | 413 | + 148 | Billion Cubic Feet |
December, 1977 | 549 | + 136 | Billion Cubic Feet |
January, 1978 | 532 | -17 | Billion Cubic Feet |
February, 1978 | 147 | -385 | Billion Cubic Feet |
March, 1978 | -92 | -239 | Billion Cubic Feet |
April, 1978 | -196 | -104 | Billion Cubic Feet |
May, 1978 | -240 | -44 | Billion Cubic Feet |
June, 1978 | -194 | + 46 | Billion Cubic Feet |
July, 1978 | -184 | + 10 | Billion Cubic Feet |
August, 1978 | -98 | + 86 | Billion Cubic Feet |
September, 1978 | -11 | + 87 | Billion Cubic Feet |
October, 1978 | 29 | + 40 | Billion Cubic Feet |
November, 1978 | 106 | + 77 | Billion Cubic Feet |
December, 1978 | 72 | -34 | Billion Cubic Feet |
January, 1979 | 71 | -1 | Billion Cubic Feet |
February, 1979 | 39 | -32 | Billion Cubic Feet |
March, 1979 | 113 | + 74 | Billion Cubic Feet |
April, 1979 | 104 | -9 | Billion Cubic Feet |
May, 1979 | 128 | + 24 | Billion Cubic Feet |
June, 1979 | 114 | -14 | Billion Cubic Feet |
July, 1979 | 120 | + 6 | Billion Cubic Feet |
August, 1979 | 127 | + 7 | Billion Cubic Feet |
September, 1979 | 107 | -20 | Billion Cubic Feet |
October, 1979 | 121 | + 14 | Billion Cubic Feet |
November, 1979 | 118 | -3 | Billion Cubic Feet |
December, 1979 | 207 | + 89 | Billion Cubic Feet |
January, 1980 | 434 | + 227 | Billion Cubic Feet |
February, 1980 | 503 | + 69 | Billion Cubic Feet |
March, 1980 | 358 | -145 | Billion Cubic Feet |
April, 1980 | 356 | -2 | Billion Cubic Feet |
May, 1980 | 379 | + 23 | Billion Cubic Feet |
June, 1980 | 349 | -30 | Billion Cubic Feet |
July, 1980 | 303 | -46 | Billion Cubic Feet |
August, 1980 | 226 | -77 | Billion Cubic Feet |
September, 1980 | 179 | -47 | Billion Cubic Feet |
October, 1980 | 108 | -71 | Billion Cubic Feet |
November, 1980 | -19 | -127 | Billion Cubic Feet |
December, 1980 | -99 | -80 | Billion Cubic Feet |
January, 1981 | -172 | -73 | Billion Cubic Feet |
February, 1981 | -28 | + 144 | Billion Cubic Feet |
March, 1981 | 37 | + 65 | Billion Cubic Feet |
April, 1981 | 73 | + 36 | Billion Cubic Feet |
May, 1981 | -21 | -94 | Billion Cubic Feet |
June, 1981 | -47 | -26 | Billion Cubic Feet |
July, 1981 | -29 | + 18 | Billion Cubic Feet |
August, 1981 | 28 | + 57 | Billion Cubic Feet |
September, 1981 | 53 | + 25 | Billion Cubic Feet |
October, 1981 | 61 | + 8 | Billion Cubic Feet |
November, 1981 | 175 | + 114 | Billion Cubic Feet |
December, 1981 | 162 | -13 | Billion Cubic Feet |
January, 1982 | 30 | -132 | Billion Cubic Feet |
February, 1982 | -37 | -67 | Billion Cubic Feet |
March, 1982 | -27 | + 10 | Billion Cubic Feet |
April, 1982 | -88 | -61 | Billion Cubic Feet |
May, 1982 | 57 | + 145 | Billion Cubic Feet |
June, 1982 | 117 | + 60 | Billion Cubic Feet |
July, 1982 | 146 | + 29 | Billion Cubic Feet |
August, 1982 | 116 | -30 | Billion Cubic Feet |
September, 1982 | 99 | -17 | Billion Cubic Feet |
October, 1982 | 116 | + 17 | Billion Cubic Feet |
November, 1982 | 108 | -8 | Billion Cubic Feet |
December, 1982 | 255 | + 147 | Billion Cubic Feet |
January, 1983 | -484.988 | -739.988 | Billion Cubic Feet |
February, 1983 | 569 | + 1053.988 | Billion Cubic Feet |
March, 1983 | 544 | -25 | Billion Cubic Feet |
April, 1983 | 398 | -146 | Billion Cubic Feet |
May, 1983 | 188 | -210 | Billion Cubic Feet |
June, 1983 | 85 | -103 | Billion Cubic Feet |
July, 1983 | -8 | -93 | Billion Cubic Feet |
August, 1983 | -90 | -82 | Billion Cubic Feet |
September, 1983 | -110 | -20 | Billion Cubic Feet |
October, 1983 | -94 | + 16 | Billion Cubic Feet |
November, 1983 | -134 | -40 | Billion Cubic Feet |
December, 1983 | -476 | -342 | Billion Cubic Feet |
January, 1984 | -553 | -77 | Billion Cubic Feet |
February, 1984 | -480 | + 73 | Billion Cubic Feet |
March, 1984 | -576 | -96 | Billion Cubic Feet |
April, 1984 | -454 | + 122 | Billion Cubic Feet |
May, 1984 | -379 | + 75 | Billion Cubic Feet |
June, 1984 | -313 | + 66 | Billion Cubic Feet |
July, 1984 | -240 | + 73 | Billion Cubic Feet |
August, 1984 | -168 | + 72 | Billion Cubic Feet |
September, 1984 | -145 | + 23 | Billion Cubic Feet |
October, 1984 | -95 | + 50 | Billion Cubic Feet |
November, 1984 | -160 | -65 | Billion Cubic Feet |
December, 1984 | 281 | + 441 | Billion Cubic Feet |
January, 1985 | 151 | -130 | Billion Cubic Feet |
February, 1985 | -23 | -174 | Billion Cubic Feet |
March, 1985 | 171 | + 194 | Billion Cubic Feet |
April, 1985 | 239 | + 68 | Billion Cubic Feet |
May, 1985 | 286 | + 47 | Billion Cubic Feet |
June, 1985 | 210 | -76 | Billion Cubic Feet |
July, 1985 | 149 | -61 | Billion Cubic Feet |
August, 1985 | 92 | -57 | Billion Cubic Feet |
September, 1985 | 85 | -7 | Billion Cubic Feet |
October, 1985 | 29 | -56 | Billion Cubic Feet |
November, 1985 | 71 | + 42 | Billion Cubic Feet |
December, 1985 | -270 | -341 | Billion Cubic Feet |
January, 1986 | -29 | + 241 | Billion Cubic Feet |
February, 1986 | 19 | + 48 | Billion Cubic Feet |
March, 1986 | 21 | + 2 | Billion Cubic Feet |
April, 1986 | -18 | -39 | Billion Cubic Feet |
May, 1986 | -53 | -35 | Billion Cubic Feet |
June, 1986 | -28 | + 25 | Billion Cubic Feet |
July, 1986 | -35 | -7 | Billion Cubic Feet |
August, 1986 | 10 | + 45 | Billion Cubic Feet |
September, 1986 | -15 | -25 | Billion Cubic Feet |
October, 1986 | 4 | + 19 | Billion Cubic Feet |
November, 1986 | -9 | -13 | Billion Cubic Feet |
December, 1986 | 142 | + 151 | Billion Cubic Feet |
January, 1987 | 67 | -75 | Billion Cubic Feet |
February, 1987 | 116 | + 49 | Billion Cubic Feet |
March, 1987 | 115 | -1 | Billion Cubic Feet |
April, 1987 | 97 | -18 | Billion Cubic Feet |
May, 1987 | 130 | + 33 | Billion Cubic Feet |
June, 1987 | 114 | -16 | Billion Cubic Feet |
July, 1987 | 66 | -48 | Billion Cubic Feet |
August, 1987 | -6 | -72 | Billion Cubic Feet |
September, 1987 | -17 | -11 | Billion Cubic Feet |
October, 1987 | -102 | -85 | Billion Cubic Feet |
November, 1987 | -18 | + 84 | Billion Cubic Feet |
December, 1987 | 7 | + 25 | Billion Cubic Feet |
January, 1988 | -52 | -59 | Billion Cubic Feet |
February, 1988 | -161 | -109 | Billion Cubic Feet |
March, 1988 | -197 | -36 | Billion Cubic Feet |
April, 1988 | -169 | + 28 | Billion Cubic Feet |
May, 1988 | -179 | -10 | Billion Cubic Feet |
June, 1988 | -144 | + 35 | Billion Cubic Feet |
July, 1988 | -69 | + 75 | Billion Cubic Feet |
August, 1988 | -1 | + 68 | Billion Cubic Feet |
September, 1988 | 71 | + 72 | Billion Cubic Feet |
October, 1988 | 137 | + 66 | Billion Cubic Feet |
November, 1988 | 112 | -25 | Billion Cubic Feet |
December, 1988 | 94 | -18 | Billion Cubic Feet |
January, 1989 | 281 | + 187 | Billion Cubic Feet |
February, 1989 | 167 | -114 | Billion Cubic Feet |
March, 1989 | 94 | -73 | Billion Cubic Feet |
April, 1989 | 54 | -40 | Billion Cubic Feet |
May, 1989 | 35 | -19 | Billion Cubic Feet |
June, 1989 | 81 | + 46 | Billion Cubic Feet |
July, 1989 | 77 | -4 | Billion Cubic Feet |
August, 1989 | 103 | + 26 | Billion Cubic Feet |
September, 1989 | 67 | -36 | Billion Cubic Feet |
October, 1989 | 25 | -42 | Billion Cubic Feet |
November, 1989 | 28 | + 3 | Billion Cubic Feet |
December, 1989 | -337 | -365 | Billion Cubic Feet |
January, 1990 | -239 | + 98 | Billion Cubic Feet |
February, 1990 | 10 | + 249 | Billion Cubic Feet |
March, 1990 | 99 | + 89 | Billion Cubic Feet |
April, 1990 | 123 | + 24 | Billion Cubic Feet |
May, 1990 | 118 | -5 | Billion Cubic Feet |
June, 1990 | 111 | -7 | Billion Cubic Feet |
July, 1990 | 147 | + 36 | Billion Cubic Feet |
August, 1990 | 133 | -14 | Billion Cubic Feet |
September, 1990 | 134 | + 1 | Billion Cubic Feet |
October, 1990 | 199 | + 65 | Billion Cubic Feet |
November, 1990 | 273 | + 74 | Billion Cubic Feet |
December, 1990 | 555 | + 282 | Billion Cubic Feet |
January, 1991 | 91.98 | -463.02 | Billion Cubic Feet |
February, 1991 | 59.355 | -32.625 | Billion Cubic Feet |
March, 1991 | 36.709 | -22.646 | Billion Cubic Feet |
April, 1991 | 90.642 | + 53.933 | Billion Cubic Feet |
May, 1991 | 92.809 | + 2.167 | Billion Cubic Feet |
June, 1991 | 67.91 | -24.899 | Billion Cubic Feet |
July, 1991 | -19.92 | -87.83 | Billion Cubic Feet |
August, 1991 | -92.507 | -72.587 | Billion Cubic Feet |
September, 1991 | -119.622 | -27.115 | Billion Cubic Feet |
October, 1991 | -98.184 | + 21.438 | Billion Cubic Feet |
November, 1991 | -324.145 | -225.961 | Billion Cubic Feet |
December, 1991 | -244.458 | + 79.687 | Billion Cubic Feet |
January, 1992 | -146.324 | + 98.134 | Billion Cubic Feet |
February, 1992 | -225.866 | -79.542 | Billion Cubic Feet |
March, 1992 | -367.083 | -141.217 | Billion Cubic Feet |
April, 1992 | -463.488 | -96.405 | Billion Cubic Feet |
May, 1992 | -424.663 | + 38.825 | Billion Cubic Feet |
June, 1992 | -400.231 | + 24.432 | Billion Cubic Feet |
July, 1992 | -311.276 | + 88.955 | Billion Cubic Feet |
August, 1992 | -217.283 | + 93.993 | Billion Cubic Feet |
September, 1992 | -157.308 | + 59.975 | Billion Cubic Feet |
October, 1992 | -145.599 | + 11.709 | Billion Cubic Feet |
November, 1992 | -94.002 | + 51.597 | Billion Cubic Feet |
December, 1992 | -226.744 | -132.742 | Billion Cubic Feet |
January, 1993 | -389.147 | -162.403 | Billion Cubic Feet |
February, 1993 | -534.769 | -145.622 | Billion Cubic Feet |
March, 1993 | -515.812 | + 18.957 | Billion Cubic Feet |
April, 1993 | -452.768 | + 63.044 | Billion Cubic Feet |
May, 1993 | -327.22 | + 125.548 | Billion Cubic Feet |
June, 1993 | -258.151 | + 69.069 | Billion Cubic Feet |
July, 1993 | -219.468 | + 38.683 | Billion Cubic Feet |
August, 1993 | -207.051 | + 12.417 | Billion Cubic Feet |
September, 1993 | -160.192 | + 46.859 | Billion Cubic Feet |
October, 1993 | -245.246 | -85.054 | Billion Cubic Feet |
November, 1993 | -291.623 | -46.377 | Billion Cubic Feet |
December, 1993 | -275.017 | + 16.606 | Billion Cubic Feet |
January, 1994 | -247.127 | + 27.89 | Billion Cubic Feet |
February, 1994 | -212.126 | + 35.001 | Billion Cubic Feet |
March, 1994 | -70.957 | + 141.169 | Billion Cubic Feet |
April, 1994 | 51.465 | + 122.422 | Billion Cubic Feet |
May, 1994 | 33.442 | -18.023 | Billion Cubic Feet |
June, 1994 | 1.892 | -31.55 | Billion Cubic Feet |
July, 1994 | 33.111 | + 31.219 | Billion Cubic Feet |
August, 1994 | 52.427 | + 19.316 | Billion Cubic Feet |
September, 1994 | 28.208 | -24.219 | Billion Cubic Feet |
October, 1994 | 96.876 | + 68.668 | Billion Cubic Feet |
November, 1994 | 215.451 | + 118.575 | Billion Cubic Feet |
December, 1994 | 284.276 | + 68.825 | Billion Cubic Feet |
January, 1995 | 465.898 | + 181.622 | Billion Cubic Feet |
February, 1995 | 451.075 | -14.823 | Billion Cubic Feet |
March, 1995 | 373.965 | -77.11 | Billion Cubic Feet |
April, 1995 | 207.43 | -166.535 | Billion Cubic Feet |
May, 1995 | 113.969 | -93.461 | Billion Cubic Feet |
June, 1995 | 117.596 | + 3.627 | Billion Cubic Feet |
July, 1995 | 27.844 | -89.752 | Billion Cubic Feet |
August, 1995 | -111.915 | -139.759 | Billion Cubic Feet |
September, 1995 | -109.868 | + 2.047 | Billion Cubic Feet |
October, 1995 | -78.819 | + 31.049 | Billion Cubic Feet |
November, 1995 | -249.199 | -170.38 | Billion Cubic Feet |
December, 1995 | -452.783 | -203.584 | Billion Cubic Feet |
January, 1996 | -582.812 | -130.029 | Billion Cubic Feet |
February, 1996 | -521.086 | + 61.726 | Billion Cubic Feet |
March, 1996 | -573.827 | -52.741 | Billion Cubic Feet |
April, 1996 | -525.319 | + 48.508 | Billion Cubic Feet |
May, 1996 | -507.223 | + 18.096 | Billion Cubic Feet |
June, 1996 | -484.891 | + 22.332 | Billion Cubic Feet |
July, 1996 | -403.642 | + 81.249 | Billion Cubic Feet |
August, 1996 | -250.167 | + 153.475 | Billion Cubic Feet |
September, 1996 | -197.237 | + 52.93 | Billion Cubic Feet |
October, 1996 | -185.553 | + 11.684 | Billion Cubic Feet |
November, 1996 | -179.345 | + 6.208 | Billion Cubic Feet |
December, 1996 | 19.278 | + 198.623 | Billion Cubic Feet |
January, 1997 | 32.013 | + 12.735 | Billion Cubic Feet |
February, 1997 | 118.261 | + 86.248 | Billion Cubic Feet |
March, 1997 | 231.619 | + 113.358 | Billion Cubic Feet |
April, 1997 | 196.411 | -35.208 | Billion Cubic Feet |
May, 1997 | 202.112 | + 5.701 | Billion Cubic Feet |
June, 1997 | 202.009 | -0.10300000000001 | Billion Cubic Feet |
July, 1997 | 118.887 | -83.122 | Billion Cubic Feet |
August, 1997 | 93.407 | -25.48 | Billion Cubic Feet |
September, 1997 | 67.328 | -26.079 | Billion Cubic Feet |
October, 1997 | 75.302 | + 7.974 | Billion Cubic Feet |
November, 1997 | 149.749 | + 74.447 | Billion Cubic Feet |
December, 1997 | 1.968 | -147.781 | Billion Cubic Feet |
January, 1998 | 214.783 | + 212.815 | Billion Cubic Feet |
February, 1998 | 285.591 | + 70.808 | Billion Cubic Feet |
March, 1998 | 191.595 | -93.996 | Billion Cubic Feet |
April, 1998 | 333.924 | + 142.329 | Billion Cubic Feet |
May, 1998 | 407.488 | + 73.564 | Billion Cubic Feet |
June, 1998 | 380.873 | -26.615 | Billion Cubic Feet |
July, 1998 | 409.445 | + 28.572 | Billion Cubic Feet |
August, 1998 | 357.761 | -51.684 | Billion Cubic Feet |
September, 1998 | 252.644 | -105.117 | Billion Cubic Feet |
October, 1998 | 302.447 | + 49.803 | Billion Cubic Feet |
November, 1998 | 453.036 | + 150.589 | Billion Cubic Feet |
December, 1998 | 554.218 | + 101.182 | Billion Cubic Feet |
January, 1999 | 360.715 | -193.503 | Billion Cubic Feet |
February, 1999 | 319.481 | -41.234 | Billion Cubic Feet |
March, 1999 | 222.97 | -96.511 | Billion Cubic Feet |
April, 1999 | 109.173 | -113.797 | Billion Cubic Feet |
May, 1999 | 61.138 | -48.035 | Billion Cubic Feet |
June, 1999 | 35.7 | -25.438 | Billion Cubic Feet |
July, 1999 | -40.543 | -76.243 | Billion Cubic Feet |
August, 1999 | -87.838 | -47.295 | Billion Cubic Feet |
September, 1999 | -4.888 | + 82.95 | Billion Cubic Feet |
October, 1999 | -117.81 | -112.922 | Billion Cubic Feet |
November, 1999 | -89.574 | + 28.236 | Billion Cubic Feet |
December, 1999 | -206.518 | -116.944 | Billion Cubic Feet |
January, 2000 | -312.362 | -105.844 | Billion Cubic Feet |
February, 2000 | -444.768 | -132.406 | Billion Cubic Feet |
March, 2000 | -255.28 | + 189.488 | Billion Cubic Feet |
April, 2000 | -297.275 | -41.995 | Billion Cubic Feet |
May, 2000 | -404.464 | -107.189 | Billion Cubic Feet |
June, 2000 | -434.614 | -30.15 | Billion Cubic Feet |
July, 2000 | -379.325 | + 55.289 | Billion Cubic Feet |
August, 2000 | -414.05 | -34.725 | Billion Cubic Feet |
September, 2000 | -432.273 | -18.223 | Billion Cubic Feet |
October, 2000 | -345.258 | + 87.015 | Billion Cubic Feet |
November, 2000 | -628.324 | -283.066 | Billion Cubic Feet |
December, 2000 | -806.397 | -178.073 | Billion Cubic Feet |
January, 2001 | -494.971 | + 311.426 | Billion Cubic Feet |
February, 2001 | -391.198 | + 103.773 | Billion Cubic Feet |
March, 2001 | -411.668 | -20.47 | Billion Cubic Feet |
April, 2001 | -210.254 | + 201.414 | Billion Cubic Feet |
May, 2001 | 6.995 | + 217.249 | Billion Cubic Feet |
June, 2001 | 165.124 | + 158.129 | Billion Cubic Feet |
July, 2001 | 258.065 | + 92.941 | Billion Cubic Feet |
August, 2001 | 376.802 | + 118.737 | Billion Cubic Feet |
September, 2001 | 449.975 | + 73.173 | Billion Cubic Feet |
October, 2001 | 411.704 | -38.271 | Billion Cubic Feet |
November, 2001 | 811.905 | + 400.201 | Billion Cubic Feet |
December, 2001 | 1184.588 | + 372.683 | Billion Cubic Feet |
January, 2002 | 1078.365 | -106.223 | Billion Cubic Feet |
February, 2002 | 925.499 | -152.866 | Billion Cubic Feet |
March, 2002 | 776.243 | -149.256 | Billion Cubic Feet |
April, 2002 | 666.278 | -109.965 | Billion Cubic Feet |
May, 2002 | 528.029 | -138.249 | Billion Cubic Feet |
June, 2002 | 425.744 | -102.285 | Billion Cubic Feet |
July, 2002 | 277.871 | -147.873 | Billion Cubic Feet |
August, 2002 | 197.581 | -80.29 | Billion Cubic Feet |
September, 2002 | 97.372 | -100.209 | Billion Cubic Feet |
October, 2002 | -28.069 | -125.441 | Billion Cubic Feet |
November, 2002 | -325.473 | -297.404 | Billion Cubic Feet |
December, 2002 | -528.281 | -202.808 | Billion Cubic Feet |
January, 2003 | -821.544 | -293.263 | Billion Cubic Feet |
February, 2003 | -987.364 | -165.82 | Billion Cubic Feet |
March, 2003 | -787.739 | + 199.625 | Billion Cubic Feet |
April, 2003 | -765.22 | + 22.519 | Billion Cubic Feet |
May, 2003 | -670.562 | + 94.658 | Billion Cubic Feet |
June, 2003 | -542.993 | + 127.569 | Billion Cubic Feet |
July, 2003 | -412.747 | + 130.246 | Billion Cubic Feet |
August, 2003 | -337.633 | + 75.114 | Billion Cubic Feet |
September, 2003 | -196.362 | + 141.271 | Billion Cubic Feet |
October, 2003 | 14.308 | + 210.67 | Billion Cubic Feet |
November, 2003 | 109.329 | + 95.021 | Billion Cubic Feet |
December, 2003 | 187.386 | + 78.057 | Billion Cubic Feet |
January, 2004 | 216.727 | + 29.341 | Billion Cubic Feet |
February, 2004 | 292.059 | + 75.332 | Billion Cubic Feet |
March, 2004 | 328.356 | + 36.297 | Billion Cubic Feet |
April, 2004 | 356.775 | + 28.419 | Billion Cubic Feet |
May, 2004 | 323.486 | -33.289 | Billion Cubic Feet |
June, 2004 | 254.689 | -68.797 | Billion Cubic Feet |
July, 2004 | 265.829 | + 11.14 | Billion Cubic Feet |
August, 2004 | 307.396 | + 41.567 | Billion Cubic Feet |
September, 2004 | 213.634 | -93.762 | Billion Cubic Feet |
October, 2004 | 172.024 | -41.61 | Billion Cubic Feet |
November, 2004 | 206.591 | + 34.567 | Billion Cubic Feet |
December, 2004 | 133.456 | -73.135 | Billion Cubic Feet |
January, 2005 | 242.899 | + 109.443 | Billion Cubic Feet |
February, 2005 | 408.705 | + 165.806 | Billion Cubic Feet |
March, 2005 | 225.959 | -182.746 | Billion Cubic Feet |
April, 2005 | 246.188 | + 20.229 | Billion Cubic Feet |
May, 2005 | 251.392 | + 5.204 | Billion Cubic Feet |
June, 2005 | 174.556 | -76.836 | Billion Cubic Feet |
July, 2005 | 55.601 | -118.955 | Billion Cubic Feet |
August, 2005 | -80.353 | -135.954 | Billion Cubic Feet |
September, 2005 | -124.851 | -44.498 | Billion Cubic Feet |
October, 2005 | -108.132 | + 16.719 | Billion Cubic Feet |
November, 2005 | -55.387 | + 52.745 | Billion Cubic Feet |
December, 2005 | -60.716 | -5.329 | Billion Cubic Feet |
January, 2006 | 377.104 | + 437.82 | Billion Cubic Feet |
February, 2006 | 321.778 | -55.326 | Billion Cubic Feet |
March, 2006 | 407.367 | + 85.589 | Billion Cubic Feet |
April, 2006 | 446.633 | + 39.266 | Billion Cubic Feet |
May, 2006 | 434.792 | -11.841 | Billion Cubic Feet |
June, 2006 | 419.156 | -15.636 | Billion Cubic Feet |
July, 2006 | 329.042 | -90.114 | Billion Cubic Feet |
August, 2006 | 306.961 | -22.081 | Billion Cubic Feet |
September, 2006 | 391.48 | + 84.519 | Billion Cubic Feet |
October, 2006 | 258.137 | -133.343 | Billion Cubic Feet |
November, 2006 | 217.492 | -40.645 | Billion Cubic Feet |
December, 2006 | 434.596 | + 217.104 | Billion Cubic Feet |
January, 2007 | 11.847 | -422.749 | Billion Cubic Feet |
February, 2007 | -234.671 | -246.518 | Billion Cubic Feet |
March, 2007 | -88.735 | + 145.936 | Billion Cubic Feet |
April, 2007 | -222.535 | -133.8 | Billion Cubic Feet |
May, 2007 | -128.704 | + 93.831 | Billion Cubic Feet |
June, 2007 | -33.863 | + 94.841 | Billion Cubic Feet |
July, 2007 | 117.043 | + 150.906 | Billion Cubic Feet |
August, 2007 | 51.576 | -65.467 | Billion Cubic Feet |
September, 2007 | -7.744 | -59.32 | Billion Cubic Feet |
October, 2007 | 113.139 | + 120.883 | Billion Cubic Feet |
November, 2007 | 35.381 | -77.758 | Billion Cubic Feet |
December, 2007 | -190.697 | -226.078 | Billion Cubic Feet |
January, 2008 | -327.014 | -136.317 | Billion Cubic Feet |
February, 2008 | -186.879 | + 140.135 | Billion Cubic Feet |
March, 2008 | -336.936 | -150.057 | Billion Cubic Feet |
April, 2008 | -286.339 | + 50.597 | Billion Cubic Feet |
May, 2008 | -341.696 | -55.357 | Billion Cubic Feet |
June, 2008 | -405.236 | -63.54 | Billion Cubic Feet |
July, 2008 | -379.232 | + 26.004 | Billion Cubic Feet |
August, 2008 | -154.635 | + 224.597 | Billion Cubic Feet |
September, 2008 | -154.516 | + 0.119 | Billion Cubic Feet |
October, 2008 | -165.999 | -11.483 | Billion Cubic Feet |
November, 2008 | -96.122 | + 69.877 | Billion Cubic Feet |
December, 2008 | -38.896 | + 57.226 | Billion Cubic Feet |
January, 2009 | 77.352 | + 116.248 | Billion Cubic Feet |
February, 2009 | 293.332 | + 215.98 | Billion Cubic Feet |
March, 2009 | 393.58 | + 100.248 | Billion Cubic Feet |
April, 2009 | 473.513 | + 79.933 | Billion Cubic Feet |
May, 2009 | 535.266 | + 61.753 | Billion Cubic Feet |
June, 2009 | 582.585 | + 47.319 | Billion Cubic Feet |
July, 2009 | 573.282 | -9.303 | Billion Cubic Feet |
August, 2009 | 492.954 | -80.328 | Billion Cubic Feet |
September, 2009 | 485.059 | -7.895 | Billion Cubic Feet |
October, 2009 | 410.486 | -74.573 | Billion Cubic Feet |
November, 2009 | 491.513 | + 81.027 | Billion Cubic Feet |
December, 2009 | 289.712 | -201.801 | Billion Cubic Feet |
January, 2010 | 170.624 | -119.088 | Billion Cubic Feet |
February, 2010 | -74.688 | -245.312 | Billion Cubic Feet |
March, 2010 | -7.234 | + 67.454 | Billion Cubic Feet |
April, 2010 | 101.186 | + 108.42 | Billion Cubic Feet |
May, 2010 | 44.85 | -56.336 | Billion Cubic Feet |
June, 2010 | -20.077 | -64.927 | Billion Cubic Feet |
July, 2010 | -124.526 | -104.449 | Billion Cubic Feet |
August, 2010 | -206.357 | -81.831 | Billion Cubic Feet |
September, 2010 | -138.332 | + 68.025 | Billion Cubic Feet |
October, 2010 | 40.774 | + 179.106 | Billion Cubic Feet |
November, 2010 | -68.519 | -109.293 | Billion Cubic Feet |
December, 2010 | -18.991 | + 49.528 | Billion Cubic Feet |
January, 2011 | 1.985 | + 20.976 | Billion Cubic Feet |
February, 2011 | 38.541 | + 36.556 | Billion Cubic Feet |
March, 2011 | -75.406 | -113.947 | Billion Cubic Feet |
April, 2011 | -222.622 | -147.216 | Billion Cubic Feet |
May, 2011 | -232.805 | -10.183 | Billion Cubic Feet |
June, 2011 | -210.409 | + 22.396 | Billion Cubic Feet |
July, 2011 | -190.434 | + 19.975 | Billion Cubic Feet |
August, 2011 | -133.607 | + 56.827 | Billion Cubic Feet |
September, 2011 | -91.948 | + 41.659 | Billion Cubic Feet |
October, 2011 | -46.812 | + 45.136 | Billion Cubic Feet |
November, 2011 | 73.978 | + 120.79 | Billion Cubic Feet |
December, 2011 | 350.936 | + 276.958 | Billion Cubic Feet |
January, 2012 | 604.164 | + 253.228 | Billion Cubic Feet |
February, 2012 | 726.936 | + 122.772 | Billion Cubic Feet |
March, 2012 | 896.123 | + 169.187 | Billion Cubic Feet |
April, 2012 | 822.746 | -73.377 | Billion Cubic Feet |
May, 2012 | 700.205 | -122.541 | Billion Cubic Feet |
June, 2012 | 585.8 | -114.405 | Billion Cubic Feet |
July, 2012 | 469.855 | -115.945 | Billion Cubic Feet |
August, 2012 | 386.98 | -82.875 | Billion Cubic Feet |
September, 2012 | 277.356 | -109.624 | Billion Cubic Feet |
October, 2012 | 125.421 | -151.935 | Billion Cubic Feet |
November, 2012 | -43.667 | -169.088 | Billion Cubic Feet |
December, 2012 | -49.111 | -5.444 | Billion Cubic Feet |
January, 2013 | -210.78 | -161.669 | Billion Cubic Feet |
February, 2013 | -349.456 | -138.676 | Billion Cubic Feet |
March, 2013 | -753.285 | -403.829 | Billion Cubic Feet |
April, 2013 | -756.038 | -2.753 | Billion Cubic Feet |
May, 2013 | -617.497 | + 138.541 | Billion Cubic Feet |
June, 2013 | -472.799 | + 144.698 | Billion Cubic Feet |
July, 2013 | -308.341 | + 164.458 | Billion Cubic Feet |
August, 2013 | -194.128 | + 114.213 | Billion Cubic Feet |
September, 2013 | -128.549 | + 65.579 | Billion Cubic Feet |
October, 2013 | -112.254 | + 16.295 | Billion Cubic Feet |
November, 2013 | -193.878 | -81.624 | Billion Cubic Feet |
December, 2013 | -523.018 | -329.14 | Billion Cubic Feet |
January, 2014 | -774.305 | -251.287 | Billion Cubic Feet |
February, 2014 | -899.367 | -125.062 | Billion Cubic Feet |
March, 2014 | -862.534 | + 36.833 | Billion Cubic Feet |
April, 2014 | -788.808 | + 73.726 | Billion Cubic Feet |
May, 2014 | -721.619 | + 67.189 | Billion Cubic Feet |
June, 2014 | -637.173 | + 84.446 | Billion Cubic Feet |
July, 2014 | -536.886 | + 100.287 | Billion Cubic Feet |
August, 2014 | -443.608 | + 93.278 | Billion Cubic Feet |
September, 2014 | -377.488 | + 66.12 | Billion Cubic Feet |
October, 2014 | -229.726 | + 147.762 | Billion Cubic Feet |
November, 2014 | -178.468 | + 51.258 | Billion Cubic Feet |
December, 2014 | 251.33 | + 429.798 | Billion Cubic Feet |
January, 2015 | 482.2 | + 230.87 | Billion Cubic Feet |
February, 2015 | 465.561 | -16.639 | Billion Cubic Feet |
March, 2015 | 614.166 | + 148.605 | Billion Cubic Feet |
April, 2015 | 726.706 | + 112.54 | Billion Cubic Feet |
May, 2015 | 739.294 | + 12.588 | Billion Cubic Feet |
June, 2015 | 641.058 | -98.236 | Billion Cubic Feet |
July, 2015 | 524.453 | -116.605 | Billion Cubic Feet |
August, 2015 | 473.234 | -51.219 | Billion Cubic Feet |
September, 2015 | 427.065 | -46.169 | Billion Cubic Feet |
October, 2015 | 355.009 | -72.056 | Billion Cubic Feet |
November, 2015 | 499.954 | + 144.945 | Billion Cubic Feet |
December, 2015 | 525.41 | + 25.456 | Billion Cubic Feet |
January, 2016 | 530.967 | + 5.557 | Billion Cubic Feet |
February, 2016 | 868.744 | + 337.777 | Billion Cubic Feet |
March, 2016 | 1014.846 | + 146.102 | Billion Cubic Feet |
April, 2016 | 852.474 | -162.372 | Billion Cubic Feet |
May, 2016 | 679.028 | -173.446 | Billion Cubic Feet |
June, 2016 | 539.499 | -139.529 | Billion Cubic Feet |
July, 2016 | 393.712 | -145.787 | Billion Cubic Feet |
August, 2016 | 199.693 | -194.019 | Billion Cubic Feet |
September, 2016 | 91.08 | -108.613 | Billion Cubic Feet |
October, 2016 | 70.444 | -20.636 | Billion Cubic Feet |
November, 2016 | 49.759 | -20.685 | Billion Cubic Feet |
December, 2016 | -369.688 | -419.447 | Billion Cubic Feet |
January, 2017 | -315.93 | + 53.758 | Billion Cubic Feet |
February, 2017 | -196.962 | + 118.968 | Billion Cubic Feet |
March, 2017 | -423.818 | -226.856 | Billion Cubic Feet |
April, 2017 | -354.31 | + 69.508 | Billion Cubic Feet |
May, 2017 | -339.758 | + 14.552 | Billion Cubic Feet |
June, 2017 | -279.224 | + 60.534 | Billion Cubic Feet |
July, 2017 | -263.988 | + 15.236 | Billion Cubic Feet |
August, 2017 | -191.429 | + 72.559 | Billion Cubic Feet |
September, 2017 | -137.933 | + 53.496 | Billion Cubic Feet |
October, 2017 | -196.227 | -58.294 | Billion Cubic Feet |
November, 2017 | -267.318 | -71.091 | Billion Cubic Feet |
December, 2017 | -264.342 | + 2.976 | Billion Cubic Feet |
January, 2018 | -481.602 | -217.26 | Billion Cubic Feet |
February, 2018 | -664.668 | -183.066 | Billion Cubic Feet |
March, 2018 | -672.225 | -7.557 | Billion Cubic Feet |
April, 2018 | -864.451 | -192.226 | Billion Cubic Feet |
May, 2018 | -779.053 | + 85.398 | Billion Cubic Feet |
June, 2018 | -711.582 | + 67.471 | Billion Cubic Feet |
July, 2018 | -672.882 | + 38.7 | Billion Cubic Feet |
August, 2018 | -633.055 | + 39.827 | Billion Cubic Feet |
September, 2018 | -616.86 | + 16.195 | Billion Cubic Feet |
October, 2018 | -580.242 | + 36.618 | Billion Cubic Feet |
November, 2018 | -679.184 | -98.942 | Billion Cubic Feet |
December, 2018 | -324.284 | + 354.9 | Billion Cubic Feet |
January, 2019 | -146.56 | + 177.724 | Billion Cubic Feet |
February, 2019 | -246.453 | -99.893 | Billion Cubic Feet |
March, 2019 | -205.389 | + 41.064 | Billion Cubic Feet |
April, 2019 | 132.602 | + 337.991 | Billion Cubic Feet |
May, 2019 | 183.577 | + 50.975 | Billion Cubic Feet |
June, 2019 | 265.521 | + 81.944 | Billion Cubic Feet |
July, 2019 | 332.927 | + 67.406 | Billion Cubic Feet |
August, 2019 | 380.969 | + 48.042 | Billion Cubic Feet |
September, 2019 | 464.571 | + 83.602 | Billion Cubic Feet |
October, 2019 | 525.788 | + 61.217 | Billion Cubic Feet |
November, 2019 | 579.95 | + 54.162 | Billion Cubic Feet |
December, 2019 | 479.925 | -100.025 | Billion Cubic Feet |
January, 2020 | 622.389 | + 142.464 | Billion Cubic Feet |
February, 2020 | 654.927 | + 32.538 | Billion Cubic Feet |
March, 2020 | 844.742 | + 189.815 | Billion Cubic Feet |
April, 2020 | 773.396 | -71.346 | Billion Cubic Feet |
May, 2020 | 746.858 | -26.538 | Billion Cubic Feet |
June, 2020 | 672.347 | -74.511 | Billion Cubic Feet |
July, 2020 | 579.353 | -92.994 | Billion Cubic Feet |
August, 2020 | 524.406 | -54.947 | Billion Cubic Feet |
September, 2020 | 424.897 | -99.509 | Billion Cubic Feet |
October, 2020 | 166.46 | -258.437 | Billion Cubic Feet |
November, 2020 | 321.587 | + 155.127 | Billion Cubic Feet |
December, 2020 | 152.732 | -168.855 | Billion Cubic Feet |
January, 2021 | 18.579 | -134.153 | Billion Cubic Feet |
February, 2021 | -222.783 | -241.362 | Billion Cubic Feet |
March, 2021 | -228.864 | -6.081 | Billion Cubic Feet |
Year | Year Open - Year Close | Year Min - Year Max | Year Average | Year Change |
---|---|---|---|---|
2021 | 18.579 - -228.864 | -228.864 - 18.579 | -144.36 | -247.44 |
2020 | 622.389 - 152.732 | 152.732 - 844.742 | 540.34 | -469.66 |
2019 | -146.56 - 479.925 | -246.453 - 579.95 | 228.95 | + 626.49 |
2018 | -481.602 - -324.284 | -864.451 - -324.284 | -640.01 | + 157.32 |
2017 | -315.93 - -264.342 | -423.818 - -137.933 | -269.27 | + 51.59 |
2016 | 530.967 - -369.688 | -369.688 - 1014.846 | 410.05 | -900.66 |
2015 | 482.2 - 525.41 | 355.009 - 739.294 | 539.51 | + 43.21 |
2014 | -774.305 - 251.33 | -899.367 - 251.33 | -516.55 | + 1025.64 |
2013 | -210.78 - -523.018 | -756.038 - -112.254 | -385 | -312.24 |
2012 | 604.164 - -49.111 | -49.111 - 896.123 | 458.57 | -653.28 |
2011 | 1.985 - 350.936 | -232.805 - 350.936 | -61.55 | + 348.95 |
2010 | 170.624 - -18.991 | -206.357 - 170.624 | -25.11 | -189.62 |
2009 | 77.352 - 289.712 | 77.352 - 582.585 | 424.89 | + 212.36 |
2008 | -327.014 - -38.896 | -405.236 - -38.896 | -239.46 | + 288.12 |
2007 | 11.847 - -190.697 | -234.671 - 117.043 | -48.16 | -202.54 |
2006 | 377.104 - 434.596 | 217.492 - 446.633 | 362.04 | + 57.49 |
2005 | 242.899 - -60.716 | -124.851 - 408.705 | 97.99 | -303.62 |
2004 | 216.727 - 133.456 | 133.456 - 356.775 | 255.92 | -83.27 |
2003 | -821.544 - 187.386 | -987.364 - 187.386 | -434.26 | + 1008.93 |
2002 | 1078.365 - -528.281 | -528.281 - 1078.365 | 340.93 | -1606.65 |
2001 | -494.971 - 1184.588 | -494.971 - 1184.588 | 179.76 | + 1679.56 |
2000 | -312.362 - -806.397 | -806.397 - -255.28 | -429.53 | -494.04 |
1999 | 360.715 - -206.518 | -206.518 - 360.715 | 46.83 | -567.23 |
1998 | 214.783 - 554.218 | 191.595 - 554.218 | 345.32 | + 339.44 |
1997 | 32.013 - 1.968 | 1.968 - 231.619 | 124.09 | -30.05 |
1996 | -582.812 - 19.278 | -582.812 - 19.278 | -365.99 | + 602.09 |
1995 | 465.898 - -452.783 | -452.783 - 465.898 | 62.93 | -918.68 |
1994 | -247.127 - 284.276 | -247.127 - 284.276 | 22.24 | + 531.4 |
1993 | -389.147 - -275.017 | -534.769 - -160.192 | -323.04 | + 114.13 |
1992 | -146.324 - -226.744 | -463.488 - -94.002 | -264.99 | -80.42 |
1991 | 91.98 - -244.458 | -324.145 - 92.809 | -38.29 | -336.44 |
1990 | -239 - 555 | -239 - 555 | 138.58 | + 794 |
1989 | 281 - -337 | -337 - 281 | 56.25 | -618 |
1988 | -52 - 94 | -197 - 137 | -46.5 | + 146 |
1987 | 67 - 7 | -102 - 130 | 47.42 | -60 |
1986 | -29 - 142 | -53 - 142 | 0.75 | + 171 |
1985 | 151 - -270 | -270 - 286 | 99.17 | -421 |
1984 | -553 - 281 | -576 - 281 | -273.5 | + 834 |
1983 | -484.988 - -476 | -484.988 - 569 | 32.25 | + 8.99 |
1982 | 30 - 255 | -88 - 255 | 74.33 | + 225 |
1981 | -172 - 162 | -172 - 175 | 24.33 | + 334 |
1980 | 434 - -99 | -99 - 503 | 256.42 | -533 |
1979 | 71 - 207 | 39 - 207 | 114.08 | + 136 |
1978 | 532 - 72 | -240 - 532 | -10.75 | -460 |
1977 | -361 - 549 | -361 - 549 | 98 | + 910 |
1976 | 182 - -286 | -286 - 182 | -43 | -468 |
1975 | 196 - 162 | 162 - 196 | 179 | -34 |
1974 | 16 - 16 | 16 - 16 | 16 | 0 |
1973 | 305 - 305 | 305 - 305 | 305 | 0 |