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

      1968         0         0     0.604         0     0.604
      1969         0         0      1.87         0      1.87
      1970         0         0      2.69         0      2.69
      1971         0         0      2.73         0      2.73
      1972         0         0       3.2         0       3.2
      1973         0         0      2.49         0      2.49
      1974         0         0      3.63         0      3.63
      1975         0         0      3.07         0      3.07
      1976         0         0      2.88         0      2.88
      1978         0         0       2.2         0       2.2
      1979         0         0      2.91         0      2.91
      1980         0         0      4.18         0      4.18
      1981         0         0      4.04         0      4.04