Table A5.  Approximate Heat Content of Coal and Coal Coke, 1949-2007
                      (Million Btu per Short Ton)






Year		 Coal Coal Coke




Production 1


Waste Coal
Supplied 2		 Consumption



Imports



Exports

Imports
and
Exports
Residential
and Commercial
Sectors		 Industrial Sector Electric
Power
Sector 4,5

Total
Coke Plants Other 3
1949
 24.916   NA   24.263   26.797 24.612 23.761   24.793   25.000 26.759 24.800
1950
 25.090   NA   24.461   26.798 24.820 23.937   24.989   25.020 26.788 24.800
1951
 25.019   NA   24.281   26.796 24.521 23.701   24.813   25.034 26.848 24.800
1952
 25.096   NA   24.371   26.796 24.724 23.885   24.901   25.040 26.859 24.800
1953
 25.147   NA   24.383   26.796 24.785 23.964   25.006   25.048 26.881 24.800
1954
 25.054   NA   24.362   26.795 24.788 23.996   24.913   25.012 26.865 24.800
1955
 25.201   NA   24.373   26.794 24.821 24.056   24.982   25.000 26.907 24.800
1956
 25.117   NA   24.195   26.792 24.664 23.943   24.843   25.000 26.886 24.800
1957
 25.213   NA   24.238   26.792 24.707 23.980   24.905   25.001 26.914 24.800
1958
 24.983   NA   24.287   26.794 24.606 23.897   24.716   25.005 26.931 24.800
1959
 24.910   NA   24.224   26.790 24.609 23.924   24.719   25.003 26.927 24.800
1960
 24.906   NA   24.226   26.791 24.609 23.927   24.713   25.003 26.939 24.800
1961
 24.849   NA   24.248   26.792 24.580 23.904   24.653   25.002 26.937 24.800
1962
 24.828   NA   24.173   26.788 24.562 23.911   24.627   25.013 26.928 24.800
1963
 24.831   NA   24.033   26.784 24.509 23.897   24.588   25.007 26.894 24.800
1964
 24.840   NA   24.037   26.785 24.477 23.864   24.602   25.000 26.949 24.800
1965
 24.775   NA   24.028   26.787 24.385 23.780   24.537   25.000 26.973 24.800
1966
 24.629   NA   23.915   26.786 24.226 23.648   24.396   25.000 26.976 24.800
1967
 24.475   NA   23.685   26.781 24.040 23.506   24.243   25.000 26.981 24.800
1968
 24.445   NA   23.621   26.780 24.014 23.486   24.186   25.000 26.984 24.800
1969
 24.280   NA   23.474   26.779 23.724 23.240   23.976   25.000 26.982 24.800
1970
 23.842   NA   23.203   26.784 22.983 22.573   23.440   25.000 26.982 24.800
1971
 23.507   NA   23.090   26.784 22.670 22.301   23.124   25.000 26.981 24.800
1972
 23.389   NA   22.998   26.782 22.550 22.204   23.036   25.000 26.979 24.800
1973
 23.376   NA   22.831   26.780 22.586 22.246   23.057   25.000 26.596 24.800
1974
 23.072   NA   22.479   26.778 22.419 21.781   22.677   25.000 26.700 24.800
1975
 22.897   NA   22.261   26.782 22.436 21.642   22.506   25.000 26.562 24.800
1976
 22.855   NA   22.774   26.781 22.530 21.679   22.498   25.000 26.601 24.800
1977
 22.597   NA   22.919   26.787 22.322 21.508   22.265   25.000 26.548 24.800
1978
 22.248   NA   22.466   26.789 22.207 21.275   22.017   25.000 26.478 24.800
1979
 22.454   NA   22.242   26.788 22.452 21.364   22.100   25.000 26.548 24.800
1980
 22.415   NA   22.543   26.790 22.690 21.295   21.947   25.000 26.384 24.800
1981
 22.308   NA   22.474   26.794 22.585 21.085   21.713   25.000 26.160 24.800
1982
 22.239   NA   22.695   26.797 22.712 21.194   21.674   25.000 26.223 24.800
1983
 22.052   NA   22.775   26.798 22.691 21.133   21.576   25.000 26.291 24.800
1984
 22.010   NA   22.844   26.799 22.543 21.101   21.573   25.000 26.402 24.800
1985
 21.870   NA   22.646   26.798 22.020 20.959   21.366   25.000 26.307 24.800
1986
 21.913   NA   22.947   26.798 22.198 21.084   21.462   25.000 26.292 24.800
1987
 21.922   NA   23.404   26.799 22.381 21.136   21.517   25.000 26.291 24.800
1988
 21.823   NA   23.571   26.799 22.360 20.900   21.328   25.000 26.299 24.800
1989
 21.765   10.391 [2] 23.650   26.800 22.347 20.898 [4] 21.307   25.000 26.160 24.800
1990
 21.822   9.303   23.137   26.799 22.457 20.779   21.197   25.000 26.202 24.800
1991
 21.681   10.758   23.114   26.799 22.460 20.730   21.120   25.000 26.188 24.800
1992
 21.682   10.396   23.105   26.799 22.250 20.709   21.068   25.000 26.161 24.800
1993
 21.418   10.638   22.994   26.800 22.123 20.677   21.010   25.000 26.335 24.800
1994
 21.394   11.097   23.112   26.800 22.068 20.589   20.929   25.000 26.329 24.800
1995
 21.326   11.722   23.118   26.800 21.950 20.543   20.880   25.000 26.180 24.800
1996
 21.322   12.147   23.011   26.800 22.105 20.547   20.870   25.000 26.174 24.800
1997
 21.296   12.158   22.494   26.800 22.172 20.518   20.830   25.000 26.251 24.800
1998
 21.418   12.639   21.620   27.426 23.164 20.516   20.881   25.000 26.800 24.800
1999
 21.070   12.552   23.880   27.426 22.489 20.490   20.818   25.000 26.081 24.800
2000
 21.072   12.360   25.020   27.426 22.433 20.511   20.828   25.000 26.117 24.800
2001
 20.772 [1] 12.169   24.909   27.426 22.622 20.337   20.671   25.000 25.998 24.800
2002
 20.673   12.165   22.962   27.426 22.562 20.238   20.541   25.000 26.062 24.800
2003
 20.499   12.360 [R] 22.242   27.425 22.468 20.082   20.387   25.000 25.972 24.800
2004
 20.424   12.266 [R] 22.324   27.426 22.473 19.980   20.290   25.000 26.108 24.800
2005
 20.348 [R] 12.093 [R] 22.342   26.279 22.178 19.988   20.246 [R] 25.000 25.494 24.800
2006
 20.310 [R] 12.080 [R] 22.066 [R] 26.271 22.050 19.931 [R] 20.181 [R] 25.000 25.453 24.800
2007P
 20.341   12.616   22.034   26.329 22.371 19.911   20.169   25.000 25.466 24.800
1Beginning in 2001, includes a small amount of refuse recovery (coal recaptured from a refuse mine,
and cleaned to reduce the concentration of noncombustible materials).		 5Electric power sector factors are for anthracite, bituminous coal, subbituminous coal, lignite, waste
coal, and, beginning in 1998, coal synfuel.
2Waste coal (including fine coal, coal obtained from a refuse bank or slurry dam, anthracite culm,
bituminous gob, and lignite waste) consumed by the electric power and industrial sectors.  Beginning in
1989, waste coal supplied is counted as a supply-side item to balance the same amount of waste coal
included in "Consumption."		 R=Revised.  P=Preliminary.  NA=Not available.  
3Includes transportation.  Excludes coal synfuel plants. Note:  The values in this table are for gross heat contents.  See "Heat Content" in Glossary. 
4Electricity-only and combined-heat-and-power (CHP) plants within the NAICS 22 category whose
primary business is to sell electricity, or electricity and heat, to the public.  Through 1988, data are for
electric utilities only; beginning in 1989, data are for electric utilities and independent power producers.		 Sources:  See "Thermal Conversion Factor Source Documentation," which follows Table A6.