Month | Data | Change | Unit |
---|---|---|---|
September, 1975 | 31 | 0 | Billion Cubic Feet |
October, 1975 | 51 | + 20 | Billion Cubic Feet |
November, 1975 | 146 | + 95 | Billion Cubic Feet |
December, 1975 | 371 | + 225 | Billion Cubic Feet |
January, 1976 | 487 | + 116 | Billion Cubic Feet |
February, 1976 | 245 | -242 | Billion Cubic Feet |
March, 1976 | 185 | -60 | Billion Cubic Feet |
April, 1976 | 69 | -116 | Billion Cubic Feet |
May, 1976 | 22 | -47 | Billion Cubic Feet |
June, 1976 | 25 | + 3 | Billion Cubic Feet |
July, 1976 | 6 | -19 | Billion Cubic Feet |
August, 1976 | 16 | + 10 | Billion Cubic Feet |
September, 1976 | 20 | + 4 | Billion Cubic Feet |
October, 1976 | 107 | + 87 | Billion Cubic Feet |
November, 1976 | 270 | + 163 | Billion Cubic Feet |
December, 1976 | 468 | + 198 | Billion Cubic Feet |
January, 1977 | 664 | + 196 | Billion Cubic Feet |
February, 1977 | 233 | -431 | Billion Cubic Feet |
March, 1977 | 131 | -102 | Billion Cubic Feet |
April, 1977 | 43 | -88 | Billion Cubic Feet |
May, 1977 | 17 | -26 | Billion Cubic Feet |
June, 1977 | 12 | -5 | Billion Cubic Feet |
July, 1977 | 15 | + 3 | Billion Cubic Feet |
August, 1977 | 21 | + 6 | Billion Cubic Feet |
September, 1977 | 2 | -19 | Billion Cubic Feet |
October, 1977 | 44 | + 42 | Billion Cubic Feet |
November, 1977 | 158 | + 114 | Billion Cubic Feet |
December, 1977 | 412 | + 254 | Billion Cubic Feet |
January, 1978 | 662 | + 250 | Billion Cubic Feet |
February, 1978 | 526 | -136 | Billion Cubic Feet |
March, 1978 | 276 | -250 | Billion Cubic Feet |
April, 1978 | 67 | -209 | Billion Cubic Feet |
May, 1978 | 30 | -37 | Billion Cubic Feet |
June, 1978 | 18 | -12 | Billion Cubic Feet |
July, 1978 | 16 | -2 | Billion Cubic Feet |
August, 1978 | 12 | -4 | Billion Cubic Feet |
September, 1978 | 9 | -3 | Billion Cubic Feet |
October, 1978 | 28 | + 19 | Billion Cubic Feet |
November, 1978 | 134 | + 106 | Billion Cubic Feet |
December, 1978 | 381 | + 247 | Billion Cubic Feet |
January, 1979 | 675 | + 294 | Billion Cubic Feet |
February, 1979 | 568 | -107 | Billion Cubic Feet |
March, 1979 | 206 | -362 | Billion Cubic Feet |
April, 1979 | 73 | -133 | Billion Cubic Feet |
May, 1979 | 13 | -60 | Billion Cubic Feet |
June, 1979 | 8 | -5 | Billion Cubic Feet |
July, 1979 | 19 | + 11 | Billion Cubic Feet |
August, 1979 | 12 | -7 | Billion Cubic Feet |
September, 1979 | 14 | + 2 | Billion Cubic Feet |
October, 1979 | 34 | + 20 | Billion Cubic Feet |
November, 1979 | 132 | + 98 | Billion Cubic Feet |
December, 1979 | 293 | + 161 | Billion Cubic Feet |
January, 1980 | 424 | + 131 | Billion Cubic Feet |
February, 1980 | 451 | + 27 | Billion Cubic Feet |
March, 1980 | 283 | -168 | Billion Cubic Feet |
April, 1980 | 65 | -218 | Billion Cubic Feet |
May, 1980 | 9 | -56 | Billion Cubic Feet |
June, 1980 | 14 | + 5 | Billion Cubic Feet |
July, 1980 | 19 | + 5 | Billion Cubic Feet |
August, 1980 | 29 | + 10 | Billion Cubic Feet |
September, 1980 | 11 | -18 | Billion Cubic Feet |
October, 1980 | 47 | + 36 | Billion Cubic Feet |
November, 1980 | 188 | + 141 | Billion Cubic Feet |
December, 1980 | 371 | + 183 | Billion Cubic Feet |
January, 1981 | 558 | + 187 | Billion Cubic Feet |
February, 1981 | 376 | -182 | Billion Cubic Feet |
March, 1981 | 234 | -142 | Billion Cubic Feet |
April, 1981 | 55 | -179 | Billion Cubic Feet |
May, 1981 | 26 | -29 | Billion Cubic Feet |
June, 1981 | 27 | + 1 | Billion Cubic Feet |
July, 1981 | 26 | -1 | Billion Cubic Feet |
August, 1981 | 15 | -11 | Billion Cubic Feet |
September, 1981 | 9 | -6 | Billion Cubic Feet |
October, 1981 | 50 | + 41 | Billion Cubic Feet |
November, 1981 | 124 | + 74 | Billion Cubic Feet |
December, 1981 | 387 | + 263 | Billion Cubic Feet |
January, 1982 | 673 | + 286 | Billion Cubic Feet |
February, 1982 | 446 | -227 | Billion Cubic Feet |
March, 1982 | 265 | -181 | Billion Cubic Feet |
April, 1982 | 108 | -157 | Billion Cubic Feet |
May, 1982 | 11 | -97 | Billion Cubic Feet |
June, 1982 | 11 | 0 | Billion Cubic Feet |
July, 1982 | 12 | + 1 | Billion Cubic Feet |
August, 1982 | 35 | + 23 | Billion Cubic Feet |
September, 1982 | 20 | -15 | Billion Cubic Feet |
October, 1982 | 60 | + 40 | Billion Cubic Feet |
November, 1982 | 163 | + 103 | Billion Cubic Feet |
December, 1982 | 289 | + 126 | Billion Cubic Feet |
January, 1983 | 449 | + 160 | Billion Cubic Feet |
February, 1983 | 325 | -124 | Billion Cubic Feet |
March, 1983 | 266 | -59 | Billion Cubic Feet |
April, 1983 | 160 | -106 | Billion Cubic Feet |
May, 1983 | 40 | -120 | Billion Cubic Feet |
June, 1983 | 22 | -18 | Billion Cubic Feet |
July, 1983 | 25 | + 3 | Billion Cubic Feet |
August, 1983 | 35 | + 10 | Billion Cubic Feet |
September, 1983 | 26 | -9 | Billion Cubic Feet |
October, 1983 | 40 | + 14 | Billion Cubic Feet |
November, 1983 | 158 | + 118 | Billion Cubic Feet |
December, 1983 | 597 | + 439 | Billion Cubic Feet |
January, 1984 | 571 | -26 | Billion Cubic Feet |
February, 1984 | 305 | -266 | Billion Cubic Feet |
March, 1984 | 365 | + 60 | Billion Cubic Feet |
April, 1984 | 100 | -265 | Billion Cubic Feet |
May, 1984 | 30 | -70 | Billion Cubic Feet |
June, 1984 | 27 | -3 | Billion Cubic Feet |
July, 1984 | 28 | + 1 | Billion Cubic Feet |
August, 1984 | 30 | + 2 | Billion Cubic Feet |
September, 1984 | 30 | 0 | Billion Cubic Feet |
October, 1984 | 47 | + 17 | Billion Cubic Feet |
November, 1984 | 227 | + 180 | Billion Cubic Feet |
December, 1984 | 304 | + 77 | Billion Cubic Feet |
January, 1985 | 642 | + 338 | Billion Cubic Feet |
February, 1985 | 438 | -204 | Billion Cubic Feet |
March, 1985 | 217 | -221 | Billion Cubic Feet |
April, 1985 | 91 | -126 | Billion Cubic Feet |
May, 1985 | 23 | -68 | Billion Cubic Feet |
June, 1985 | 31 | + 8 | Billion Cubic Feet |
July, 1985 | 45 | + 14 | Billion Cubic Feet |
August, 1985 | 50 | + 5 | Billion Cubic Feet |
September, 1985 | 20 | -30 | Billion Cubic Feet |
October, 1985 | 71 | + 51 | Billion Cubic Feet |
November, 1985 | 202 | + 131 | Billion Cubic Feet |
December, 1985 | 529 | + 327 | Billion Cubic Feet |
January, 1986 | 414 | -115 | Billion Cubic Feet |
February, 1986 | 369 | -45 | Billion Cubic Feet |
March, 1986 | 213 | -156 | Billion Cubic Feet |
April, 1986 | 73 | -140 | Billion Cubic Feet |
May, 1986 | 42 | -31 | Billion Cubic Feet |
June, 1986 | 24 | -18 | Billion Cubic Feet |
July, 1986 | 29 | + 5 | Billion Cubic Feet |
August, 1986 | 26 | -3 | Billion Cubic Feet |
September, 1986 | 25 | -1 | Billion Cubic Feet |
October, 1986 | 48 | + 23 | Billion Cubic Feet |
November, 1986 | 197 | + 149 | Billion Cubic Feet |
December, 1986 | 352 | + 155 | Billion Cubic Feet |
January, 1987 | 513 | + 161 | Billion Cubic Feet |
February, 1987 | 320 | -193 | Billion Cubic Feet |
March, 1987 | 210 | -110 | Billion Cubic Feet |
April, 1987 | 101 | -109 | Billion Cubic Feet |
May, 1987 | 28 | -73 | Billion Cubic Feet |
June, 1987 | 21 | -7 | Billion Cubic Feet |
July, 1987 | 27 | + 6 | Billion Cubic Feet |
August, 1987 | 43 | + 16 | Billion Cubic Feet |
September, 1987 | 19 | -24 | Billion Cubic Feet |
October, 1987 | 86 | + 67 | Billion Cubic Feet |
November, 1987 | 153 | + 67 | Billion Cubic Feet |
December, 1987 | 359 | + 206 | Billion Cubic Feet |
January, 1988 | 578 | + 219 | Billion Cubic Feet |
February, 1988 | 456 | -122 | Billion Cubic Feet |
March, 1988 | 255 | -201 | Billion Cubic Feet |
April, 1988 | 92 | -163 | Billion Cubic Feet |
May, 1988 | 46 | -46 | Billion Cubic Feet |
June, 1988 | 36 | -10 | Billion Cubic Feet |
July, 1988 | 42 | + 6 | Billion Cubic Feet |
August, 1988 | 52 | + 10 | Billion Cubic Feet |
September, 1988 | 46 | -6 | Billion Cubic Feet |
October, 1988 | 92 | + 46 | Billion Cubic Feet |
November, 1988 | 157 | + 65 | Billion Cubic Feet |
December, 1988 | 391 | + 234 | Billion Cubic Feet |
January, 1989 | 418 | + 27 | Billion Cubic Feet |
February, 1989 | 602 | + 184 | Billion Cubic Feet |
March, 1989 | 362 | -240 | Billion Cubic Feet |
April, 1989 | 138 | -224 | Billion Cubic Feet |
May, 1989 | 44 | -94 | Billion Cubic Feet |
June, 1989 | 20 | -24 | Billion Cubic Feet |
July, 1989 | 29 | + 9 | Billion Cubic Feet |
August, 1989 | 29 | 0 | Billion Cubic Feet |
September, 1989 | 39 | + 10 | Billion Cubic Feet |
October, 1989 | 96 | + 57 | Billion Cubic Feet |
November, 1989 | 223 | + 127 | Billion Cubic Feet |
December, 1989 | 805 | + 582 | Billion Cubic Feet |
January, 1990 | 342 | -463 | Billion Cubic Feet |
February, 1990 | 332 | -10 | Billion Cubic Feet |
March, 1990 | 258 | -74 | Billion Cubic Feet |
April, 1990 | 138 | -120 | Billion Cubic Feet |
May, 1990 | 43 | -95 | Billion Cubic Feet |
June, 1990 | 40 | -3 | Billion Cubic Feet |
July, 1990 | 26 | -14 | Billion Cubic Feet |
August, 1990 | 39 | + 13 | Billion Cubic Feet |
September, 1990 | 35 | -4 | Billion Cubic Feet |
October, 1990 | 63 | + 28 | Billion Cubic Feet |
November, 1990 | 145 | + 82 | Billion Cubic Feet |
December, 1990 | 473 | + 328 | Billion Cubic Feet |
January, 1991 | 659.536 | + 186.536 | Billion Cubic Feet |
February, 1991 | 397.274 | -262.262 | Billion Cubic Feet |
March, 1991 | 290.55 | -106.724 | Billion Cubic Feet |
April, 1991 | 104.133 | -186.417 | Billion Cubic Feet |
May, 1991 | 58.377 | -45.756 | Billion Cubic Feet |
June, 1991 | 41.69 | -16.687 | Billion Cubic Feet |
July, 1991 | 75.293 | + 33.603 | Billion Cubic Feet |
August, 1991 | 81.761 | + 6.468 | Billion Cubic Feet |
September, 1991 | 77.602 | -4.159 | Billion Cubic Feet |
October, 1991 | 103.112 | + 25.51 | Billion Cubic Feet |
November, 1991 | 351.841 | + 248.729 | Billion Cubic Feet |
December, 1991 | 447.561 | + 95.72 | Billion Cubic Feet |
January, 1992 | 591.331 | + 143.77 | Billion Cubic Feet |
February, 1992 | 441.117 | -150.214 | Billion Cubic Feet |
March, 1992 | 381.489 | -59.628 | Billion Cubic Feet |
April, 1992 | 149.854 | -231.635 | Billion Cubic Feet |
May, 1992 | 52.549 | -97.305 | Billion Cubic Feet |
June, 1992 | 43.358 | -9.191 | Billion Cubic Feet |
July, 1992 | 50.093 | + 6.735 | Billion Cubic Feet |
August, 1992 | 54.388 | + 4.295 | Billion Cubic Feet |
September, 1992 | 48.31 | -6.078 | Billion Cubic Feet |
October, 1992 | 78.352 | + 30.042 | Billion Cubic Feet |
November, 1992 | 276.181 | + 197.829 | Billion Cubic Feet |
December, 1992 | 556.751 | + 280.57 | Billion Cubic Feet |
January, 1993 | 592.014 | + 35.263 | Billion Cubic Feet |
February, 1993 | 569.094 | -22.92 | Billion Cubic Feet |
March, 1993 | 382.947 | -186.147 | Billion Cubic Feet |
April, 1993 | 103.05 | -279.897 | Billion Cubic Feet |
May, 1993 | 29.945 | -73.105 | Billion Cubic Feet |
June, 1993 | 35.828 | + 5.883 | Billion Cubic Feet |
July, 1993 | 34.909 | -0.919 | Billion Cubic Feet |
August, 1993 | 45.282 | + 10.373 | Billion Cubic Feet |
September, 1993 | 25.604 | -19.678 | Billion Cubic Feet |
October, 1993 | 103.065 | + 77.461 | Billion Cubic Feet |
November, 1993 | 303.034 | + 199.969 | Billion Cubic Feet |
December, 1993 | 492.292 | + 189.258 | Billion Cubic Feet |
January, 1994 | 792.28 | + 299.988 | Billion Cubic Feet |
February, 1994 | 567.118 | -225.162 | Billion Cubic Feet |
March, 1994 | 240.181 | -326.937 | Billion Cubic Feet |
April, 1994 | 67.836 | -172.345 | Billion Cubic Feet |
May, 1994 | 24.762 | -43.074 | Billion Cubic Feet |
June, 1994 | 37.106 | + 12.344 | Billion Cubic Feet |
July, 1994 | 26.044 | -11.062 | Billion Cubic Feet |
August, 1994 | 29.763 | + 3.719 | Billion Cubic Feet |
September, 1994 | 21.317 | -8.446 | Billion Cubic Feet |
October, 1994 | 53.932 | + 32.615 | Billion Cubic Feet |
November, 1994 | 204.406 | + 150.474 | Billion Cubic Feet |
December, 1994 | 443.406 | + 239 | Billion Cubic Feet |
January, 1995 | 643.737 | + 200.331 | Billion Cubic Feet |
February, 1995 | 563.553 | -80.184 | Billion Cubic Feet |
March, 1995 | 326.868 | -236.685 | Billion Cubic Feet |
April, 1995 | 127.129 | -199.739 | Billion Cubic Feet |
May, 1995 | 34.108 | -93.021 | Billion Cubic Feet |
June, 1995 | 39.697 | + 5.589 | Billion Cubic Feet |
July, 1995 | 53.57 | + 13.873 | Billion Cubic Feet |
August, 1995 | 85.9 | + 32.33 | Billion Cubic Feet |
September, 1995 | 29.373 | -56.527 | Billion Cubic Feet |
October, 1995 | 68.156 | + 38.783 | Billion Cubic Feet |
November, 1995 | 367.482 | + 299.326 | Billion Cubic Feet |
December, 1995 | 634.529 | + 267.047 | Billion Cubic Feet |
January, 1996 | 749.232 | + 114.703 | Billion Cubic Feet |
February, 1996 | 543.58 | -205.652 | Billion Cubic Feet |
March, 1996 | 403.011 | -140.569 | Billion Cubic Feet |
April, 1996 | 112.283 | -290.728 | Billion Cubic Feet |
May, 1996 | 45.408 | -66.875 | Billion Cubic Feet |
June, 1996 | 34.953 | -10.455 | Billion Cubic Feet |
July, 1996 | 48.551 | + 13.598 | Billion Cubic Feet |
August, 1996 | 54.401 | + 5.85 | Billion Cubic Feet |
September, 1996 | 32.244 | -22.157 | Billion Cubic Feet |
October, 1996 | 73.094 | + 40.85 | Billion Cubic Feet |
November, 1996 | 353.803 | + 280.709 | Billion Cubic Feet |
December, 1996 | 460.768 | + 106.965 | Billion Cubic Feet |
January, 1997 | 752.618 | + 291.85 | Billion Cubic Feet |
February, 1997 | 413.337 | -339.281 | Billion Cubic Feet |
March, 1997 | 285.29 | -128.047 | Billion Cubic Feet |
April, 1997 | 146.424 | -138.866 | Billion Cubic Feet |
May, 1997 | 41.169 | -105.255 | Billion Cubic Feet |
June, 1997 | 42.136 | + 0.96700000000001 | Billion Cubic Feet |
July, 1997 | 78.29 | + 36.154 | Billion Cubic Feet |
August, 1997 | 56.291 | -21.999 | Billion Cubic Feet |
September, 1997 | 43.618 | -12.673 | Billion Cubic Feet |
October, 1997 | 84.262 | + 40.644 | Billion Cubic Feet |
November, 1997 | 301.853 | + 217.591 | Billion Cubic Feet |
December, 1997 | 578.956 | + 277.103 | Billion Cubic Feet |
January, 1998 | 537.7 | -41.256 | Billion Cubic Feet |
February, 1998 | 365.184 | -172.516 | Billion Cubic Feet |
March, 1998 | 381.746 | + 16.562 | Billion Cubic Feet |
April, 1998 | 79.578 | -302.168 | Billion Cubic Feet |
May, 1998 | 42.423 | -37.155 | Billion Cubic Feet |
June, 1998 | 52.474 | + 10.051 | Billion Cubic Feet |
July, 1998 | 54.423 | + 1.949 | Billion Cubic Feet |
August, 1998 | 58.29 | + 3.867 | Billion Cubic Feet |
September, 1998 | 73.751 | + 15.461 | Billion Cubic Feet |
October, 1998 | 46.265 | -27.486 | Billion Cubic Feet |
November, 1998 | 168.2 | + 121.935 | Billion Cubic Feet |
December, 1998 | 518.623 | + 350.423 | Billion Cubic Feet |
January, 1999 | 681.761 | + 163.138 | Billion Cubic Feet |
February, 1999 | 384.62 | -297.141 | Billion Cubic Feet |
March, 1999 | 383.812 | -0.80799999999999 | Billion Cubic Feet |
April, 1999 | 119.768 | -264.044 | Billion Cubic Feet |
May, 1999 | 44.507 | -75.261 | Billion Cubic Feet |
June, 1999 | 41.615 | -2.892 | Billion Cubic Feet |
July, 1999 | 80.59 | + 38.975 | Billion Cubic Feet |
August, 1999 | 89.875 | + 9.285 | Billion Cubic Feet |
September, 1999 | 42.513 | -47.362 | Billion Cubic Feet |
October, 1999 | 92.1 | + 49.587 | Billion Cubic Feet |
November, 1999 | 204.839 | + 112.739 | Billion Cubic Feet |
December, 1999 | 605.535 | + 400.696 | Billion Cubic Feet |
January, 2000 | 841.196 | + 235.661 | Billion Cubic Feet |
February, 2000 | 533.28 | -307.916 | Billion Cubic Feet |
March, 2000 | 291.383 | -241.897 | Billion Cubic Feet |
April, 2000 | 146.087 | -145.296 | Billion Cubic Feet |
May, 2000 | 81.665 | -64.422 | Billion Cubic Feet |
June, 2000 | 64.535 | -17.13 | Billion Cubic Feet |
July, 2000 | 82.854 | + 18.319 | Billion Cubic Feet |
August, 2000 | 108.584 | + 25.73 | Billion Cubic Feet |
September, 2000 | 79.749 | -28.835 | Billion Cubic Feet |
October, 2000 | 87.54 | + 7.791 | Billion Cubic Feet |
November, 2000 | 395.838 | + 308.298 | Billion Cubic Feet |
December, 2000 | 785.493 | + 389.655 | Billion Cubic Feet |
January, 2001 | 587.628 | -197.865 | Billion Cubic Feet |
February, 2001 | 413.534 | -174.094 | Billion Cubic Feet |
March, 2001 | 298.446 | -115.088 | Billion Cubic Feet |
April, 2001 | 69.902 | -228.544 | Billion Cubic Feet |
May, 2001 | 40.662 | -29.24 | Billion Cubic Feet |
June, 2001 | 49.385 | + 8.723 | Billion Cubic Feet |
July, 2001 | 66.006 | + 16.621 | Billion Cubic Feet |
August, 2001 | 79.128 | + 13.122 | Billion Cubic Feet |
September, 2001 | 41.288 | -37.84 | Billion Cubic Feet |
October, 2001 | 92.822 | + 51.534 | Billion Cubic Feet |
November, 2001 | 137.839 | + 45.017 | Billion Cubic Feet |
December, 2001 | 432.047 | + 294.208 | Billion Cubic Feet |
January, 2002 | 605.976 | + 173.929 | Billion Cubic Feet |
February, 2002 | 519.577 | -86.399 | Billion Cubic Feet |
March, 2002 | 427.864 | -91.713 | Billion Cubic Feet |
April, 2002 | 112.304 | -315.56 | Billion Cubic Feet |
May, 2002 | 59.64 | -52.664 | Billion Cubic Feet |
June, 2002 | 56.451 | -3.189 | Billion Cubic Feet |
July, 2002 | 101.29 | + 44.839 | Billion Cubic Feet |
August, 2002 | 89.506 | -11.784 | Billion Cubic Feet |
September, 2002 | 71.013 | -18.493 | Billion Cubic Feet |
October, 2002 | 145.238 | + 74.225 | Billion Cubic Feet |
November, 2002 | 321.966 | + 176.728 | Billion Cubic Feet |
December, 2002 | 626.841 | + 304.875 | Billion Cubic Feet |
January, 2003 | 883.945 | + 257.104 | Billion Cubic Feet |
February, 2003 | 724.482 | -159.463 | Billion Cubic Feet |
March, 2003 | 306.139 | -418.343 | Billion Cubic Feet |
April, 2003 | 119.366 | -186.773 | Billion Cubic Feet |
May, 2003 | 40.598 | -78.768 | Billion Cubic Feet |
June, 2003 | 35.857 | -4.741 | Billion Cubic Feet |
July, 2003 | 64.215 | + 28.358 | Billion Cubic Feet |
August, 2003 | 61.79 | -2.425 | Billion Cubic Feet |
September, 2003 | 30.556 | -31.234 | Billion Cubic Feet |
October, 2003 | 59.357 | + 28.801 | Billion Cubic Feet |
November, 2003 | 228.166 | + 168.809 | Billion Cubic Feet |
December, 2003 | 544.262 | + 316.096 | Billion Cubic Feet |
January, 2004 | 874.924 | + 330.662 | Billion Cubic Feet |
February, 2004 | 650.388 | -224.536 | Billion Cubic Feet |
March, 2004 | 271.716 | -378.672 | Billion Cubic Feet |
April, 2004 | 95.471 | -176.245 | Billion Cubic Feet |
May, 2004 | 43.263 | -52.208 | Billion Cubic Feet |
June, 2004 | 36.037 | -7.226 | Billion Cubic Feet |
July, 2004 | 59.863 | + 23.826 | Billion Cubic Feet |
August, 2004 | 57.225 | -2.638 | Billion Cubic Feet |
September, 2004 | 67.287 | + 10.062 | Billion Cubic Feet |
October, 2004 | 62.653 | -4.634 | Billion Cubic Feet |
November, 2004 | 191.886 | + 129.233 | Billion Cubic Feet |
December, 2004 | 625.852 | + 433.966 | Billion Cubic Feet |
January, 2005 | 771.451 | + 145.599 | Billion Cubic Feet |
February, 2005 | 487.458 | -283.993 | Billion Cubic Feet |
March, 2005 | 384.78 | -102.678 | Billion Cubic Feet |
April, 2005 | 71.971 | -312.809 | Billion Cubic Feet |
May, 2005 | 56.604 | -15.367 | Billion Cubic Feet |
June, 2005 | 65.769 | + 9.165 | Billion Cubic Feet |
July, 2005 | 95.138 | + 29.369 | Billion Cubic Feet |
August, 2005 | 100.094 | + 4.956 | Billion Cubic Feet |
September, 2005 | 86.793 | -13.301 | Billion Cubic Feet |
October, 2005 | 73.924 | -12.869 | Billion Cubic Feet |
November, 2005 | 211.85 | + 137.926 | Billion Cubic Feet |
December, 2005 | 650.767 | + 438.917 | Billion Cubic Feet |
January, 2006 | 373.525 | -277.242 | Billion Cubic Feet |
February, 2006 | 539.208 | + 165.683 | Billion Cubic Feet |
March, 2006 | 331.197 | -208.011 | Billion Cubic Feet |
April, 2006 | 76.524 | -254.673 | Billion Cubic Feet |
May, 2006 | 52.343 | -24.181 | Billion Cubic Feet |
June, 2006 | 61.927 | + 9.584 | Billion Cubic Feet |
July, 2006 | 144.082 | + 82.155 | Billion Cubic Feet |
August, 2006 | 112.859 | -31.223 | Billion Cubic Feet |
September, 2006 | 36.976 | -75.883 | Billion Cubic Feet |
October, 2006 | 115.149 | + 78.173 | Billion Cubic Feet |
November, 2006 | 206.204 | + 91.055 | Billion Cubic Feet |
December, 2006 | 442.868 | + 236.664 | Billion Cubic Feet |
January, 2007 | 740.117 | + 297.249 | Billion Cubic Feet |
February, 2007 | 782.391 | + 42.274 | Billion Cubic Feet |
March, 2007 | 269.76 | -512.631 | Billion Cubic Feet |
April, 2007 | 153.774 | -115.986 | Billion Cubic Feet |
May, 2007 | 38.201 | -115.573 | Billion Cubic Feet |
June, 2007 | 47.166 | + 8.965 | Billion Cubic Feet |
July, 2007 | 83.554 | + 36.388 | Billion Cubic Feet |
August, 2007 | 167.095 | + 83.541 | Billion Cubic Feet |
September, 2007 | 73.075 | -94.02 | Billion Cubic Feet |
October, 2007 | 75.355 | + 2.28 | Billion Cubic Feet |
November, 2007 | 262.091 | + 186.736 | Billion Cubic Feet |
December, 2007 | 632.434 | + 370.343 | Billion Cubic Feet |
January, 2008 | 890.978 | + 258.544 | Billion Cubic Feet |
February, 2008 | 648.34 | -242.638 | Billion Cubic Feet |
March, 2008 | 349.985 | -298.355 | Billion Cubic Feet |
April, 2008 | 105.508 | -244.477 | Billion Cubic Feet |
May, 2008 | 56.029 | -49.479 | Billion Cubic Feet |
June, 2008 | 80.529 | + 24.5 | Billion Cubic Feet |
July, 2008 | 88.366 | + 7.837 | Billion Cubic Feet |
August, 2008 | 92.221 | + 3.855 | Billion Cubic Feet |
September, 2008 | 97.945 | + 5.724 | Billion Cubic Feet |
October, 2008 | 91.443 | -6.502 | Billion Cubic Feet |
November, 2008 | 250.495 | + 159.052 | Billion Cubic Feet |
December, 2008 | 622.499 | + 372.004 | Billion Cubic Feet |
January, 2009 | 783.292 | + 160.793 | Billion Cubic Feet |
February, 2009 | 471.513 | -311.779 | Billion Cubic Feet |
March, 2009 | 294.397 | -177.116 | Billion Cubic Feet |
April, 2009 | 105.648 | -188.749 | Billion Cubic Feet |
May, 2009 | 45.384 | -60.264 | Billion Cubic Feet |
June, 2009 | 62.43 | + 17.046 | Billion Cubic Feet |
July, 2009 | 82.604 | + 20.174 | Billion Cubic Feet |
August, 2009 | 87.907 | + 5.303 | Billion Cubic Feet |
September, 2009 | 56.736 | -31.171 | Billion Cubic Feet |
October, 2009 | 98.787 | + 42.051 | Billion Cubic Feet |
November, 2009 | 139.546 | + 40.759 | Billion Cubic Feet |
December, 2009 | 737.937 | + 598.391 | Billion Cubic Feet |
January, 2010 | 873.468 | + 135.531 | Billion Cubic Feet |
February, 2010 | 657.184 | -216.284 | Billion Cubic Feet |
March, 2010 | 237.569 | -419.615 | Billion Cubic Feet |
April, 2010 | 67.931 | -169.638 | Billion Cubic Feet |
May, 2010 | 52.524 | -15.407 | Billion Cubic Feet |
June, 2010 | 63.577 | + 11.053 | Billion Cubic Feet |
July, 2010 | 112.493 | + 48.916 | Billion Cubic Feet |
August, 2010 | 137.433 | + 24.94 | Billion Cubic Feet |
September, 2010 | 52.326 | -85.107 | Billion Cubic Feet |
October, 2010 | 52.156 | -0.17 | Billion Cubic Feet |
November, 2010 | 236.543 | + 184.387 | Billion Cubic Feet |
December, 2010 | 731.181 | + 494.638 | Billion Cubic Feet |
January, 2011 | 849.115 | + 117.934 | Billion Cubic Feet |
February, 2011 | 666.248 | -182.867 | Billion Cubic Feet |
March, 2011 | 313.952 | -352.296 | Billion Cubic Feet |
April, 2011 | 100.096 | -213.856 | Billion Cubic Feet |
May, 2011 | 58.314 | -41.782 | Billion Cubic Feet |
June, 2011 | 80.472 | + 22.158 | Billion Cubic Feet |
July, 2011 | 115.649 | + 35.177 | Billion Cubic Feet |
August, 2011 | 125.989 | + 10.34 | Billion Cubic Feet |
September, 2011 | 55.418 | -70.571 | Billion Cubic Feet |
October, 2011 | 51.527 | -3.891 | Billion Cubic Feet |
November, 2011 | 183.799 | + 132.272 | Billion Cubic Feet |
December, 2011 | 473.674 | + 289.875 | Billion Cubic Feet |
January, 2012 | 619.332 | + 145.658 | Billion Cubic Feet |
February, 2012 | 515.817 | -103.515 | Billion Cubic Feet |
March, 2012 | 205.365 | -310.452 | Billion Cubic Feet |
April, 2012 | 126.403 | -78.962 | Billion Cubic Feet |
May, 2012 | 73.735 | -52.668 | Billion Cubic Feet |
June, 2012 | 90.8 | + 17.065 | Billion Cubic Feet |
July, 2012 | 129.567 | + 38.767 | Billion Cubic Feet |
August, 2012 | 133.919 | + 4.352 | Billion Cubic Feet |
September, 2012 | 66.652 | -67.267 | Billion Cubic Feet |
October, 2012 | 85.918 | + 19.266 | Billion Cubic Feet |
November, 2012 | 280.933 | + 195.015 | Billion Cubic Feet |
December, 2012 | 489.707 | + 208.774 | Billion Cubic Feet |
January, 2013 | 793.28 | + 303.573 | Billion Cubic Feet |
February, 2013 | 648.024 | -145.256 | Billion Cubic Feet |
March, 2013 | 482.543 | -165.481 | Billion Cubic Feet |
April, 2013 | 135.335 | -347.208 | Billion Cubic Feet |
May, 2013 | 48.824 | -86.511 | Billion Cubic Feet |
June, 2013 | 68.653 | + 19.829 | Billion Cubic Feet |
July, 2013 | 98.733 | + 30.08 | Billion Cubic Feet |
August, 2013 | 101.608 | + 2.875 | Billion Cubic Feet |
September, 2013 | 66.306 | -35.302 | Billion Cubic Feet |
October, 2013 | 84.363 | + 18.057 | Billion Cubic Feet |
November, 2013 | 365.862 | + 281.499 | Billion Cubic Feet |
December, 2013 | 807.979 | + 442.117 | Billion Cubic Feet |
January, 2014 | 1038.87 | + 230.891 | Billion Cubic Feet |
February, 2014 | 832.536 | -206.334 | Billion Cubic Feet |
March, 2014 | 487.513 | -345.023 | Billion Cubic Feet |
April, 2014 | 105.471 | -382.042 | Billion Cubic Feet |
May, 2014 | 51.122 | -54.349 | Billion Cubic Feet |
June, 2014 | 43.752 | -7.37 | Billion Cubic Feet |
July, 2014 | 63.495 | + 19.743 | Billion Cubic Feet |
August, 2014 | 73.368 | + 9.873 | Billion Cubic Feet |
September, 2014 | 47.07 | -26.298 | Billion Cubic Feet |
October, 2014 | 52.054 | + 4.984 | Billion Cubic Feet |
November, 2014 | 361.403 | + 309.349 | Billion Cubic Feet |
December, 2014 | 429.214 | + 67.811 | Billion Cubic Feet |
January, 2015 | 795.057 | + 365.843 | Billion Cubic Feet |
February, 2015 | 803.302 | + 8.245 | Billion Cubic Feet |
March, 2015 | 375.546 | -427.756 | Billion Cubic Feet |
April, 2015 | 83.652 | -291.894 | Billion Cubic Feet |
May, 2015 | 44.445 | -39.207 | Billion Cubic Feet |
June, 2015 | 68.449 | + 24.004 | Billion Cubic Feet |
July, 2015 | 94.665 | + 26.216 | Billion Cubic Feet |
August, 2015 | 84.994 | -9.671 | Billion Cubic Feet |
September, 2015 | 63.374 | -21.62 | Billion Cubic Feet |
October, 2015 | 70.047 | + 6.673 | Billion Cubic Feet |
November, 2015 | 213.595 | + 143.548 | Billion Cubic Feet |
December, 2015 | 402.564 | + 188.969 | Billion Cubic Feet |
January, 2016 | 794.704 | + 392.14 | Billion Cubic Feet |
February, 2016 | 514.528 | -280.176 | Billion Cubic Feet |
March, 2016 | 263.952 | -250.576 | Billion Cubic Feet |
April, 2016 | 129.944 | -134.008 | Billion Cubic Feet |
May, 2016 | 73.834 | -56.11 | Billion Cubic Feet |
June, 2016 | 94.09 | + 20.256 | Billion Cubic Feet |
July, 2016 | 150.122 | + 56.032 | Billion Cubic Feet |
August, 2016 | 161.716 | + 11.594 | Billion Cubic Feet |
September, 2016 | 88.399 | -73.317 | Billion Cubic Feet |
October, 2016 | 78.239 | -10.16 | Billion Cubic Feet |
November, 2016 | 213.195 | + 134.956 | Billion Cubic Feet |
December, 2016 | 762.197 | + 549.002 | Billion Cubic Feet |
January, 2017 | 787.405 | + 25.208 | Billion Cubic Feet |
February, 2017 | 421.966 | -365.439 | Billion Cubic Feet |
March, 2017 | 449.319 | + 27.353 | Billion Cubic Feet |
April, 2017 | 122.132 | -327.187 | Billion Cubic Feet |
May, 2017 | 89.622 | -32.51 | Billion Cubic Feet |
June, 2017 | 104.773 | + 15.151 | Billion Cubic Feet |
July, 2017 | 153.53 | + 48.757 | Billion Cubic Feet |
August, 2017 | 157.763 | + 4.233 | Billion Cubic Feet |
September, 2017 | 102.776 | -54.987 | Billion Cubic Feet |
October, 2017 | 130.729 | + 27.953 | Billion Cubic Feet |
November, 2017 | 285.005 | + 154.276 | Billion Cubic Feet |
December, 2017 | 785.458 | + 500.453 | Billion Cubic Feet |
January, 2018 | 1036.901 | + 251.443 | Billion Cubic Feet |
February, 2018 | 599.428 | -437.473 | Billion Cubic Feet |
March, 2018 | 449.149 | -150.279 | Billion Cubic Feet |
April, 2018 | 223.809 | -225.34 | Billion Cubic Feet |
May, 2018 | 65.909 | -157.9 | Billion Cubic Feet |
June, 2018 | 87.627 | + 21.718 | Billion Cubic Feet |
July, 2018 | 175.166 | + 87.539 | Billion Cubic Feet |
August, 2018 | 171.775 | -3.391 | Billion Cubic Feet |
September, 2018 | 129.749 | -42.026 | Billion Cubic Feet |
October, 2018 | 131.043 | + 1.294 | Billion Cubic Feet |
November, 2018 | 418.016 | + 286.973 | Billion Cubic Feet |
December, 2018 | 510.852 | + 92.836 | Billion Cubic Feet |
January, 2019 | 803.756 | + 292.904 | Billion Cubic Feet |
February, 2019 | 672.497 | -131.259 | Billion Cubic Feet |
March, 2019 | 434.932 | -237.565 | Billion Cubic Feet |
April, 2019 | 103.531 | -331.401 | Billion Cubic Feet |
May, 2019 | 85.019 | -18.512 | Billion Cubic Feet |
June, 2019 | 91.812 | + 6.793 | Billion Cubic Feet |
July, 2019 | 161.5 | + 69.688 | Billion Cubic Feet |
August, 2019 | 167.605 | + 6.105 | Billion Cubic Feet |
September, 2019 | 109.361 | -58.244 | Billion Cubic Feet |
October, 2019 | 115.665 | + 6.304 | Billion Cubic Feet |
November, 2019 | 350.856 | + 235.191 | Billion Cubic Feet |
December, 2019 | 556.268 | + 205.412 | Billion Cubic Feet |
January, 2020 | 665.035 | + 108.767 | Billion Cubic Feet |
February, 2020 | 634.364 | -30.671 | Billion Cubic Feet |
March, 2020 | 285.473 | -348.891 | Billion Cubic Feet |
April, 2020 | 130.552 | -154.921 | Billion Cubic Feet |
May, 2020 | 73.987 | -56.565 | Billion Cubic Feet |
June, 2020 | 84.854 | + 10.867 | Billion Cubic Feet |
July, 2020 | 151.035 | + 66.181 | Billion Cubic Feet |
August, 2020 | 173.887 | + 22.852 | Billion Cubic Feet |
September, 2020 | 126.17 | -47.717 | Billion Cubic Feet |
October, 2020 | 190.723 | + 64.553 | Billion Cubic Feet |
November, 2020 | 214.323 | + 23.6 | Billion Cubic Feet |
December, 2020 | 681.386 | + 467.063 | Billion Cubic Feet |
January, 2021 | 782.893 | + 101.507 | Billion Cubic Feet |
February, 2021 | 903.651 | + 120.758 | Billion Cubic Feet |
March, 2021 | 321.156 | -582.495 | Billion Cubic Feet |
Year | Year Open - Year Close | Year Min - Year Max | Year Average | Year Change |
---|---|---|---|---|
2021 | 782.893 - 321.156 | 321.156 - 903.651 | 669.23 | -461.74 |
2020 | 665.035 - 681.386 | 73.987 - 681.386 | 284.32 | + 16.35 |
2019 | 803.756 - 556.268 | 85.019 - 803.756 | 304.4 | -247.49 |
2018 | 1036.901 - 510.852 | 65.909 - 1036.901 | 333.29 | -526.05 |
2017 | 787.405 - 785.458 | 89.622 - 787.405 | 299.21 | -1.95 |
2016 | 794.704 - 762.197 | 73.834 - 794.704 | 277.08 | -32.51 |
2015 | 795.057 - 402.564 | 44.445 - 803.302 | 258.31 | -392.49 |
2014 | 1038.87 - 429.214 | 43.752 - 1038.87 | 298.82 | -609.66 |
2013 | 793.28 - 807.979 | 48.824 - 807.979 | 308.46 | + 14.7 |
2012 | 619.332 - 489.707 | 66.652 - 619.332 | 234.85 | -129.63 |
2011 | 849.115 - 473.674 | 51.527 - 849.115 | 256.19 | -375.44 |
2010 | 873.468 - 731.181 | 52.156 - 873.468 | 272.87 | -142.29 |
2009 | 783.292 - 737.937 | 45.384 - 783.292 | 247.18 | -45.36 |
2008 | 890.978 - 622.499 | 56.029 - 890.978 | 281.19 | -268.48 |
2007 | 740.117 - 632.434 | 38.201 - 782.391 | 277.08 | -107.68 |
2006 | 373.525 - 442.868 | 36.976 - 539.208 | 207.74 | + 69.34 |
2005 | 771.451 - 650.767 | 56.604 - 771.451 | 254.72 | -120.68 |
2004 | 874.924 - 625.852 | 36.037 - 874.924 | 253.05 | -249.07 |
2003 | 883.945 - 544.262 | 30.556 - 883.945 | 258.23 | -339.68 |
2002 | 605.976 - 626.841 | 56.451 - 626.841 | 261.47 | + 20.87 |
2001 | 587.628 - 432.047 | 40.662 - 587.628 | 192.39 | -155.58 |
2000 | 841.196 - 785.493 | 64.535 - 841.196 | 291.52 | -55.7 |
1999 | 681.761 - 605.535 | 41.615 - 681.761 | 230.96 | -76.23 |
1998 | 537.7 - 518.623 | 42.423 - 537.7 | 198.22 | -19.08 |
1997 | 752.618 - 578.956 | 41.169 - 752.618 | 235.35 | -173.66 |
1996 | 749.232 - 460.768 | 32.244 - 749.232 | 242.61 | -288.46 |
1995 | 643.737 - 634.529 | 29.373 - 643.737 | 247.84 | -9.21 |
1994 | 792.28 - 443.406 | 21.317 - 792.28 | 209.01 | -348.87 |
1993 | 592.014 - 492.292 | 25.604 - 592.014 | 226.42 | -99.72 |
1992 | 591.331 - 556.751 | 43.358 - 591.331 | 226.98 | -34.58 |
1991 | 659.536 - 447.561 | 41.69 - 659.536 | 224.06 | -211.98 |
1990 | 342 - 473 | 26 - 473 | 161.17 | + 131 |
1989 | 418 - 805 | 20 - 805 | 233.75 | + 387 |
1988 | 578 - 391 | 36 - 578 | 186.92 | -187 |
1987 | 513 - 359 | 19 - 513 | 156.67 | -154 |
1986 | 414 - 352 | 24 - 414 | 151 | -62 |
1985 | 642 - 529 | 20 - 642 | 196.58 | -113 |
1984 | 571 - 304 | 27 - 571 | 172 | -267 |
1983 | 449 - 597 | 22 - 597 | 178.58 | + 148 |
1982 | 673 - 289 | 11 - 673 | 174.42 | -384 |
1981 | 558 - 387 | 9 - 558 | 157.25 | -171 |
1980 | 424 - 371 | 9 - 451 | 159.25 | -53 |
1979 | 675 - 293 | 8 - 675 | 170.58 | -382 |
1978 | 662 - 381 | 9 - 662 | 179.92 | -281 |
1977 | 664 - 412 | 2 - 664 | 146 | -252 |
1976 | 487 - 468 | 6 - 487 | 160 | -19 |
1975 | 31 - 371 | 31 - 371 | 149.75 | + 340 |