1949 | 26.797 | 0 | Million Btu per Short Ton |
1950 | 26.798 | + 0.00099999999999767 | Million Btu per Short Ton |
1951 | 26.796 | -0.0019999999999989 | Million Btu per Short Ton |
1952 | 26.796 | 0 | Million Btu per Short Ton |
1953 | 26.796 | 0 | Million Btu per Short Ton |
1954 | 26.795 | -0.00099999999999767 | Million Btu per Short Ton |
1955 | 26.794 | -0.0010000000000012 | Million Btu per Short Ton |
1956 | 26.792 | -0.0019999999999989 | Million Btu per Short Ton |
1957 | 26.792 | 0 | Million Btu per Short Ton |
1958 | 26.794 | + 0.0019999999999989 | Million Btu per Short Ton |
1959 | 26.79 | -0.0040000000000013 | Million Btu per Short Ton |
1960 | 26.791 | + 0.0010000000000012 | Million Btu per Short Ton |
1961 | 26.792 | + 0.0010000000000012 | Million Btu per Short Ton |
1962 | 26.788 | -0.0040000000000013 | Million Btu per Short Ton |
1963 | 26.784 | -0.0040000000000013 | Million Btu per Short Ton |
1964 | 26.785 | + 0.0010000000000012 | Million Btu per Short Ton |
1965 | 26.787 | + 0.0019999999999989 | Million Btu per Short Ton |
1966 | 26.786 | -0.00099999999999767 | Million Btu per Short Ton |
1967 | 26.781 | -0.0050000000000026 | Million Btu per Short Ton |
1968 | 26.78 | -0.00099999999999767 | Million Btu per Short Ton |
1969 | 26.779 | -0.0010000000000012 | Million Btu per Short Ton |
1970 | 26.784 | + 0.004999999999999 | Million Btu per Short Ton |
1971 | 26.784 | 0 | Million Btu per Short Ton |
1972 | 26.782 | -0.0019999999999989 | Million Btu per Short Ton |
1973 | 26.78 | -0.0019999999999989 | Million Btu per Short Ton |
1974 | 26.778 | -0.0020000000000024 | Million Btu per Short Ton |
1975 | 26.782 | + 0.0040000000000013 | Million Btu per Short Ton |
1976 | 26.781 | -0.0010000000000012 | Million Btu per Short Ton |
1977 | 26.787 | + 0.0060000000000002 | Million Btu per Short Ton |
1978 | 26.789 | + 0.0020000000000024 | Million Btu per Short Ton |
1979 | 26.788 | -0.0010000000000012 | Million Btu per Short Ton |
1980 | 26.79 | + 0.0019999999999989 | Million Btu per Short Ton |
1981 | 26.794 | + 0.0040000000000013 | Million Btu per Short Ton |
1982 | 26.797 | + 0.0030000000000001 | Million Btu per Short Ton |
1983 | 26.798 | + 0.00099999999999767 | Million Btu per Short Ton |
1984 | 26.799 | + 0.0010000000000012 | Million Btu per Short Ton |
1985 | 26.798 | -0.0010000000000012 | Million Btu per Short Ton |
1986 | 26.798 | 0 | Million Btu per Short Ton |
1987 | 26.799 | + 0.0010000000000012 | Million Btu per Short Ton |
1988 | 26.799 | 0 | Million Btu per Short Ton |
1989 | 26.8 | + 0.0010000000000012 | Million Btu per Short Ton |
1990 | 26.799 | -0.0010000000000012 | Million Btu per Short Ton |
1991 | 26.799 | 0 | Million Btu per Short Ton |
1992 | 26.799 | 0 | Million Btu per Short Ton |
1993 | 26.8 | + 0.0010000000000012 | Million Btu per Short Ton |
1994 | 26.8 | 0 | Million Btu per Short Ton |
1995 | 26.8 | 0 | Million Btu per Short Ton |
1996 | 26.8 | 0 | Million Btu per Short Ton |
1997 | 26.8 | 0 | Million Btu per Short Ton |
1998 | 27.426 | + 0.626 | Million Btu per Short Ton |
1999 | 27.426 | 0 | Million Btu per Short Ton |
2000 | 27.426 | 0 | Million Btu per Short Ton |
2001 | 27.426 | 0 | Million Btu per Short Ton |
2002 | 27.426 | 0 | Million Btu per Short Ton |
2003 | 27.425 | -0.00099999999999767 | Million Btu per Short Ton |
2004 | 27.426 | + 0.00099999999999767 | Million Btu per Short Ton |
2005 | 26.279 | -1.147 | Million Btu per Short Ton |
2006 | 26.271 | -0.0079999999999991 | Million Btu per Short Ton |
2007 | 26.329 | + 0.058 | Million Btu per Short Ton |
2008 | 26.281 | -0.048000000000002 | Million Btu per Short Ton |
2009 | 26.334 | + 0.053000000000001 | Million Btu per Short Ton |
2010 | 26.295 | -0.038999999999998 | Million Btu per Short Ton |
2011 | 26.299 | + 0.0039999999999978 | Million Btu per Short Ton |
2012 | 28.636 | + 2.337 | Million Btu per Short Ton |
2013 | 28.705 | + 0.068999999999999 | Million Btu per Short Ton |
2014 | 28.458 | -0.247 | Million Btu per Short Ton |
2015 | 28.526 | + 0.068000000000001 | Million Btu per Short Ton |
2016 | 28.608 | + 0.082000000000001 | Million Btu per Short Ton |
2017 | 28.673 | + 0.064999999999998 | Million Btu per Short Ton |
2018 | 28.608 | -0.064999999999998 | Million Btu per Short Ton |
2019 | 28.629 | + 0.021000000000001 | Million Btu per Short Ton |
2020 | 28.717 | + 0.087999999999997 | Million Btu per Short Ton |
2021 | 28.717 | 0 | Million Btu per Short Ton |