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

      1972      2.31         0      4.71         0      7.02
      1973      2.91         0      4.03         0      6.94
      1974      2.59         0      2.17         0      4.76
      1975      3.06         0         5         0      8.06
      1976      3.33         0      5.16         0      8.49
      1977      2.86         0       6.6         0      9.46
      1978      3.51         0      6.11         0      9.62
      1979      2.13         0      6.09         0      8.22
      1980      2.98         0      8.22         0      11.2
      1981      3.28         0      8.15         0      11.4
      1982      3.88         0      6.38         0      10.3
      1983       1.9         0      4.91         0      6.81
      1984     0.714         0      4.86         0      5.57
      1985      1.12         0      4.53         0      5.65
      1986      1.66         0       4.5         0      6.15
      1987      2.55         0       4.8         0      7.35
      1988      2.68         0      5.79         0      8.47
      1989      2.82         0      5.95         0      8.77
      1990      6.28         0      4.59         0      10.9