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

      1931    0.0205         0         0         0    0.0205
      1932    0.0411         0         0         0    0.0411
      1933    0.0617         0         0         0    0.0617
      1934    0.0822         0         0         0    0.0822
      1935     0.103         0         0         0     0.103
      1936     0.123         0         0         0     0.123
      1937     0.144         0         0         0     0.144
      1938     0.165         0         0         0     0.165
      1939     0.185         0         0         0     0.185
      1940     0.206         0         0         0     0.206
      1941     0.227         0         0         0     0.227
      1942     0.247         0         0         0     0.247
      1943     0.268         0         0         0     0.268
      1944     0.289         0         0         0     0.289
      1945      0.31         0         0         0      0.31
      1946      0.33         0         0         0      0.33
      1947     0.351         0         0         0     0.351
      1948     0.372         0         0         0     0.372
      1949     0.393         0         0         0     0.393
      1980     0.264         0         0         0     0.264
      1981     0.396         0         0         0     0.396
      1982     0.595         0         0         0     0.595
      1983      1.72         0         0         0      1.72
      1984      1.98         0         0         0      1.98
      1985      1.98         0         0         0      1.98
      1986      2.05         0         0         0      2.05
      1987      2.03         0         0         0      2.03
      1988      2.05         0         0         0      2.05
      1989      2.08         0         0         0      2.08
      1990      2.09         0         0         0      2.09