Month | Data | Change | Unit |
---|---|---|---|
November, 1978 | 0.31 | 0 | USD/Therms |
December, 1978 | 0.318 | + 0.008 | USD/Therms |
January, 1979 | 0.325 | + 0.007 | USD/Therms |
February, 1979 | 0.333 | + 0.008 | USD/Therms |
March, 1979 | 0.336 | + 0.003 | USD/Therms |
April, 1979 | 0.334 | -0.002 | USD/Therms |
May, 1979 | 0.348 | + 0.014 | USD/Therms |
June, 1979 | 0.345 | -0.003 | USD/Therms |
July, 1979 | 0.357 | + 0.012 | USD/Therms |
August, 1979 | 0.364 | + 0.007 | USD/Therms |
September, 1979 | 0.375 | + 0.011 | USD/Therms |
October, 1979 | 0.374 | -0.001 | USD/Therms |
November, 1979 | 0.376 | + 0.002 | USD/Therms |
December, 1979 | 0.397 | + 0.021 | USD/Therms |
January, 1980 | 0.399 | + 0.002 | USD/Therms |
February, 1980 | 0.398 | -0.001 | USD/Therms |
March, 1980 | 0.401 | + 0.003 | USD/Therms |
April, 1980 | 0.401 | 0 | USD/Therms |
May, 1980 | 0.399 | -0.002 | USD/Therms |
June, 1980 | 0.412 | + 0.013 | USD/Therms |
July, 1980 | 0.417 | + 0.005 | USD/Therms |
August, 1980 | 0.435 | + 0.018 | USD/Therms |
September, 1980 | 0.442 | + 0.007 | USD/Therms |
October, 1980 | 0.442 | 0 | USD/Therms |
November, 1980 | 0.446 | + 0.004 | USD/Therms |
December, 1980 | 0.447 | + 0.001 | USD/Therms |
January, 1981 | 0.447 | 0 | USD/Therms |
February, 1981 | 0.448 | + 0.001 | USD/Therms |
March, 1981 | 0.471 | + 0.023 | USD/Therms |
April, 1981 | 0.47 | -0.001 | USD/Therms |
May, 1981 | 0.418 | -0.052 | USD/Therms |
June, 1981 | 0.416 | -0.002 | USD/Therms |
July, 1981 | 0.415 | -0.001 | USD/Therms |
August, 1981 | 0.429 | + 0.014 | USD/Therms |
September, 1981 | 0.443 | + 0.014 | USD/Therms |
October, 1981 | 0.451 | + 0.008 | USD/Therms |
November, 1981 | 0.423 | -0.028 | USD/Therms |
December, 1981 | 0.423 | 0 | USD/Therms |
January, 1982 | 0.423 | 0 | USD/Therms |
February, 1982 | 0.434 | + 0.011 | USD/Therms |
March, 1982 | 0.444 | + 0.01 | USD/Therms |
April, 1982 | 0.445 | + 0.001 | USD/Therms |
May, 1982 | 0.446 | + 0.001 | USD/Therms |
June, 1982 | 0.456 | + 0.01 | USD/Therms |
July, 1982 | 0.461 | + 0.005 | USD/Therms |
August, 1982 | 0.47 | + 0.009 | USD/Therms |
September, 1982 | 0.486 | + 0.016 | USD/Therms |
October, 1982 | 0.506 | + 0.02 | USD/Therms |
November, 1982 | 0.52 | + 0.014 | USD/Therms |
December, 1982 | 0.534 | + 0.014 | USD/Therms |
January, 1983 | 0.546 | + 0.012 | USD/Therms |
February, 1983 | 0.555 | + 0.009 | USD/Therms |
March, 1983 | 0.569 | + 0.014 | USD/Therms |
April, 1983 | 0.583 | + 0.014 | USD/Therms |
May, 1983 | 0.588 | + 0.005 | USD/Therms |
June, 1983 | 0.581 | -0.007 | USD/Therms |
July, 1983 | 0.597 | + 0.016 | USD/Therms |
August, 1983 | 0.583 | -0.014 | USD/Therms |
September, 1983 | 0.577 | -0.006 | USD/Therms |
October, 1983 | 0.579 | + 0.002 | USD/Therms |
November, 1983 | 0.592 | + 0.013 | USD/Therms |
December, 1983 | 0.59 | -0.002 | USD/Therms |
January, 1984 | 0.583 | -0.007 | USD/Therms |
February, 1984 | 0.575 | -0.008 | USD/Therms |
March, 1984 | 0.576 | + 0.001 | USD/Therms |
April, 1984 | 0.573 | -0.003 | USD/Therms |
May, 1984 | 0.585 | + 0.012 | USD/Therms |
June, 1984 | 0.589 | + 0.004 | USD/Therms |
July, 1984 | 0.591 | + 0.002 | USD/Therms |
August, 1984 | 0.587 | -0.004 | USD/Therms |
September, 1984 | 0.609 | + 0.022 | USD/Therms |
October, 1984 | 0.624 | + 0.015 | USD/Therms |
November, 1984 | 0.61 | -0.014 | USD/Therms |
December, 1984 | 0.61 | 0 | USD/Therms |
January, 1985 | 0.613 | + 0.003 | USD/Therms |
February, 1985 | 0.616 | + 0.003 | USD/Therms |
March, 1985 | 0.618 | + 0.002 | USD/Therms |
April, 1985 | 0.612 | -0.006 | USD/Therms |
May, 1985 | 0.625 | + 0.013 | USD/Therms |
June, 1985 | 0.625 | 0 | USD/Therms |
July, 1985 | 0.617 | -0.008 | USD/Therms |
August, 1985 | 0.448 | -0.169 | USD/Therms |
October, 1985 | 0.605 | + 0.157 | USD/Therms |
November, 1985 | 0.587 | -0.018 | USD/Therms |
December, 1985 | 0.584 | -0.003 | USD/Therms |
January, 1986 | 0.572 | -0.012 | USD/Therms |
February, 1986 | 0.568 | -0.004 | USD/Therms |
March, 1986 | 0.57 | + 0.002 | USD/Therms |
April, 1986 | 0.568 | -0.002 | USD/Therms |
May, 1986 | 0.606 | + 0.038 | USD/Therms |
June, 1986 | 0.603 | -0.003 | USD/Therms |
July, 1986 | 0.599 | -0.004 | USD/Therms |
August, 1986 | 0.605 | + 0.006 | USD/Therms |
September, 1986 | 0.627 | + 0.022 | USD/Therms |
October, 1986 | 0.593 | -0.034 | USD/Therms |
November, 1986 | 0.55 | -0.043 | USD/Therms |
December, 1986 | 0.548 | -0.002 | USD/Therms |
January, 1987 | 0.546 | -0.002 | USD/Therms |
February, 1987 | 0.544 | -0.002 | USD/Therms |
March, 1987 | 0.544 | 0 | USD/Therms |
April, 1987 | 0.537 | -0.007 | USD/Therms |
May, 1987 | 0.534 | -0.003 | USD/Therms |
June, 1987 | 0.529 | -0.005 | USD/Therms |
July, 1987 | 0.525 | -0.004 | USD/Therms |
August, 1987 | 0.473 | -0.052 | USD/Therms |
September, 1987 | 0.484 | + 0.011 | USD/Therms |
October, 1987 | 0.493 | + 0.009 | USD/Therms |
November, 1987 | 0.48 | -0.013 | USD/Therms |
December, 1987 | 0.487 | + 0.007 | USD/Therms |
January, 1988 | 0.494 | + 0.007 | USD/Therms |
February, 1988 | 0.505 | + 0.011 | USD/Therms |
March, 1988 | 0.51 | + 0.005 | USD/Therms |
April, 1988 | 0.499 | -0.011 | USD/Therms |
May, 1988 | 0.502 | + 0.003 | USD/Therms |
June, 1988 | 0.493 | -0.009 | USD/Therms |
July, 1988 | 0.492 | -0.001 | USD/Therms |
August, 1988 | 0.492 | 0 | USD/Therms |
September, 1988 | 0.499 | + 0.007 | USD/Therms |
October, 1988 | 0.493 | -0.006 | USD/Therms |
November, 1988 | 0.523 | + 0.03 | USD/Therms |
December, 1988 | 0.54 | + 0.017 | USD/Therms |
January, 1989 | 0.543 | + 0.003 | USD/Therms |
February, 1989 | 0.545 | + 0.002 | USD/Therms |
March, 1989 | 0.527 | -0.018 | USD/Therms |
April, 1989 | 0.523 | -0.004 | USD/Therms |
May, 1989 | 0.525 | + 0.002 | USD/Therms |
June, 1989 | 0.496 | -0.029 | USD/Therms |
July, 1989 | 0.494 | -0.002 | USD/Therms |
August, 1989 | 0.494 | 0 | USD/Therms |
September, 1989 | 0.51 | + 0.016 | USD/Therms |
October, 1989 | 0.511 | + 0.001 | USD/Therms |
November, 1989 | 0.522 | + 0.011 | USD/Therms |
December, 1989 | 0.542 | + 0.02 | USD/Therms |
January, 1990 | 0.551 | + 0.009 | USD/Therms |
February, 1990 | 0.499 | -0.052 | USD/Therms |
March, 1990 | 0.518 | + 0.019 | USD/Therms |
April, 1990 | 0.503 | -0.015 | USD/Therms |
May, 1990 | 0.504 | + 0.001 | USD/Therms |
June, 1990 | 0.485 | -0.019 | USD/Therms |
July, 1990 | 0.484 | -0.001 | USD/Therms |
August, 1990 | 0.481 | -0.003 | USD/Therms |
September, 1990 | 0.498 | + 0.017 | USD/Therms |
October, 1990 | 0.501 | + 0.003 | USD/Therms |
November, 1990 | 0.513 | + 0.012 | USD/Therms |
December, 1990 | 0.547 | + 0.034 | USD/Therms |
January, 1991 | 0.554 | + 0.007 | USD/Therms |
February, 1991 | 0.547 | -0.007 | USD/Therms |
March, 1991 | 0.507 | -0.04 | USD/Therms |
April, 1991 | 0.509 | + 0.002 | USD/Therms |
May, 1991 | 0.507 | -0.002 | USD/Therms |
June, 1991 | 0.49 | -0.017 | USD/Therms |
July, 1991 | 0.485 | -0.005 | USD/Therms |
August, 1991 | 0.488 | + 0.003 | USD/Therms |
September, 1991 | 0.514 | + 0.026 | USD/Therms |
October, 1991 | 0.52 | + 0.006 | USD/Therms |
November, 1991 | 0.529 | + 0.009 | USD/Therms |
December, 1991 | 0.553 | + 0.024 | USD/Therms |
January, 1992 | 0.553 | 0 | USD/Therms |
February, 1992 | 0.535 | -0.018 | USD/Therms |
March, 1992 | 0.508 | -0.027 | USD/Therms |
April, 1992 | 0.508 | 0 | USD/Therms |
May, 1992 | 0.515 | + 0.007 | USD/Therms |
June, 1992 | 0.512 | -0.003 | USD/Therms |
July, 1992 | 0.517 | + 0.005 | USD/Therms |
August, 1992 | 0.526 | + 0.009 | USD/Therms |
September, 1992 | 0.557 | + 0.031 | USD/Therms |
October, 1992 | 0.579 | + 0.022 | USD/Therms |
November, 1992 | 0.578 | -0.001 | USD/Therms |
December, 1992 | 0.593 | + 0.015 | USD/Therms |
January, 1993 | 0.587 | -0.006 | USD/Therms |
February, 1993 | 0.573 | -0.014 | USD/Therms |
March, 1993 | 0.565 | -0.008 | USD/Therms |
April, 1993 | 0.569 | + 0.004 | USD/Therms |
May, 1993 | 0.586 | + 0.017 | USD/Therms |
June, 1993 | 0.588 | + 0.002 | USD/Therms |
July, 1993 | 0.581 | -0.007 | USD/Therms |
August, 1993 | 0.583 | + 0.002 | USD/Therms |
September, 1993 | 0.614 | + 0.031 | USD/Therms |
October, 1993 | 0.6 | -0.014 | USD/Therms |
November, 1993 | 0.588 | -0.012 | USD/Therms |
December, 1993 | 0.617 | + 0.029 | USD/Therms |
January, 1994 | 0.601 | -0.016 | USD/Therms |
February, 1994 | 0.615 | + 0.014 | USD/Therms |
March, 1994 | 0.608 | -0.007 | USD/Therms |
April, 1994 | 0.594 | -0.014 | USD/Therms |
May, 1994 | 0.595 | + 0.001 | USD/Therms |
June, 1994 | 0.566 | -0.029 | USD/Therms |
July, 1994 | 0.531 | -0.035 | USD/Therms |
August, 1994 | 0.506 | -0.025 | USD/Therms |
September, 1994 | 0.566 | + 0.06 | USD/Therms |
October, 1994 | 0.566 | 0 | USD/Therms |
November, 1994 | 0.581 | + 0.015 | USD/Therms |
December, 1994 | 0.583 | + 0.002 | USD/Therms |
January, 1995 | 0.578 | -0.005 | USD/Therms |
February, 1995 | 0.566 | -0.012 | USD/Therms |
March, 1995 | 0.531 | -0.035 | USD/Therms |
April, 1995 | 0.539 | + 0.008 | USD/Therms |
May, 1995 | 0.542 | + 0.003 | USD/Therms |
June, 1995 | 0.514 | -0.028 | USD/Therms |
July, 1995 | 0.47 | -0.044 | USD/Therms |
August, 1995 | 0.488 | + 0.018 | USD/Therms |
September, 1995 | 0.501 | + 0.013 | USD/Therms |
October, 1995 | 0.525 | + 0.024 | USD/Therms |
November, 1995 | 0.523 | -0.002 | USD/Therms |
December, 1995 | 0.539 | + 0.016 | USD/Therms |
January, 1996 | 0.54 | + 0.001 | USD/Therms |
February, 1996 | 0.563 | + 0.023 | USD/Therms |
March, 1996 | 0.574 | + 0.011 | USD/Therms |
April, 1996 | 0.559 | -0.015 | USD/Therms |
May, 1996 | 0.56 | + 0.001 | USD/Therms |
June, 1996 | 0.529 | -0.031 | USD/Therms |
July, 1996 | 0.551 | + 0.022 | USD/Therms |
August, 1996 | 0.532 | -0.019 | USD/Therms |
September, 1996 | 0.54 | + 0.008 | USD/Therms |
October, 1996 | 0.592 | + 0.052 | USD/Therms |
November, 1996 | 0.622 | + 0.03 | USD/Therms |
December, 1996 | 0.668 | + 0.046 | USD/Therms |
January, 1997 | 0.674 | + 0.006 | USD/Therms |
February, 1997 | 0.653 | -0.021 | USD/Therms |
March, 1997 | 0.618 | -0.035 | USD/Therms |
April, 1997 | 0.576 | -0.042 | USD/Therms |
May, 1997 | 0.598 | + 0.022 | USD/Therms |
June, 1997 | 0.617 | + 0.019 | USD/Therms |
July, 1997 | 0.607 | -0.01 | USD/Therms |
August, 1997 | 0.576 | -0.031 | USD/Therms |
September, 1997 | 0.626 | + 0.05 | USD/Therms |
October, 1997 | 0.632 | + 0.006 | USD/Therms |
November, 1997 | 0.666 | + 0.034 | USD/Therms |
December, 1997 | 0.658 | -0.008 | USD/Therms |
Year | Year Open - Year Close | Year Min - Year Max | Year Average | Year Change |
---|---|---|---|---|
1997 | 0.674 - 0.658 | 0.576 - 0.674 | 0.63 | -0.02 |
1996 | 0.54 - 0.668 | 0.529 - 0.668 | 0.57 | + 0.13 |
1995 | 0.578 - 0.539 | 0.47 - 0.578 | 0.53 | -0.04 |
1994 | 0.601 - 0.583 | 0.506 - 0.615 | 0.58 | -0.02 |
1993 | 0.587 - 0.617 | 0.565 - 0.617 | 0.59 | + 0.03 |
1992 | 0.553 - 0.593 | 0.508 - 0.593 | 0.54 | + 0.04 |
1991 | 0.554 - 0.553 | 0.485 - 0.554 | 0.52 | -0 |
1990 | 0.551 - 0.547 | 0.481 - 0.551 | 0.51 | -0 |
1989 | 0.543 - 0.542 | 0.494 - 0.545 | 0.52 | -0 |
1988 | 0.494 - 0.54 | 0.492 - 0.54 | 0.5 | + 0.05 |
1987 | 0.546 - 0.487 | 0.473 - 0.546 | 0.51 | -0.06 |
1986 | 0.572 - 0.548 | 0.548 - 0.627 | 0.58 | -0.02 |
1985 | 0.613 - 0.584 | 0.448 - 0.625 | 0.6 | -0.03 |
1984 | 0.583 - 0.61 | 0.573 - 0.624 | 0.59 | + 0.03 |
1983 | 0.546 - 0.59 | 0.546 - 0.597 | 0.58 | + 0.04 |
1982 | 0.423 - 0.534 | 0.423 - 0.534 | 0.47 | + 0.11 |
1981 | 0.447 - 0.423 | 0.415 - 0.471 | 0.44 | -0.02 |
1980 | 0.399 - 0.447 | 0.398 - 0.447 | 0.42 | + 0.05 |
1979 | 0.325 - 0.397 | 0.325 - 0.397 | 0.36 | + 0.07 |
1978 | 0.31 - 0.318 | 0.31 - 0.318 | 0.31 | + 0.01 |