Year    H.Coal    B.Coal       Oil    Smelting   Total
                kt/a      kt/a      kt/a      kt/a      kt/a

      1950    0.0251         0         0         0    0.0251
      1951    0.0283         0         0         0    0.0283
      1952    0.0415         0         0         0    0.0415
      1954    0.0508         0         0         0    0.0508
      1955     0.027         0         0         0     0.027
      1975    0.0613         0         0         0    0.0613
      1976     0.012         0         0         0     0.012
      1977    0.0116         0         0         0    0.0116
      1978     0.011         0         0         0     0.011
      1979    0.0119         0         0         0    0.0119
      1980    0.0127         0         0         0    0.0127
      1981    0.0133         0         0         0    0.0133
      1982     0.013         0    0.0754         0    0.0884
      1983    0.0119         0    0.0724         0    0.0843
      1984    0.0115         0     0.157         0     0.169
      1985         0         0     0.262         0     0.262
      1986         0         0     0.427         0     0.427
      1987         0         0     0.464         0     0.464
      1988         0         0     0.586         0     0.586
      1989         0         0     0.582         0     0.582
      1990         0         0     0.746         0     0.746