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

      1950     0.176         0      2.82         0         3
      1951     0.184         0      10.3         0      10.5
      1952     0.346         0      12.4         0      12.8
      1953     0.299         0      12.4         0      12.7
      1954     0.381         0      13.1         0      13.5
      1955     0.229         0      13.5         0      13.8
      1956     0.395         0      12.7         0      13.1
      1957      0.42         0      11.9         0      12.4
      1958     0.295         0      13.2         0      13.5
      1959     0.187         0      13.7         0      13.9
      1960     0.465         0      14.4      5.04      19.9
      1961     0.236         0      14.6      4.97      19.8
      1962     0.278         0      18.4      4.09      22.8
      1963     0.179         0      20.6      5.64      26.4
      1964     0.258         0      22.1      7.94      30.3
      1965    0.0403         0      29.1      6.26      35.4
      1966    0.0264         0      29.9      7.72      37.7
      1967     0.013         0      38.9       7.6      46.5
      1968    0.0512         0      41.2      7.49      48.7
      1969    0.0129         0      43.3      8.11      51.4
      1970    0.0264         0      59.2      7.99      67.2
      1971    0.0125         0      66.6      7.15      73.8
      1972    0.0619         0      62.4      8.44      70.9
      1973    0.0359         0      70.2      7.61      77.9
      1974     0.036         0      67.1       6.8        74
      1975     0.049         0      60.2      5.35      65.6
      1976    0.0601         0      40.8      1.38      42.2
      1977    0.0582         0      45.4         0      45.4
      1978     0.055         0      45.9         0      45.9
      1979    0.0595         0      46.4         0      46.5
      1980    0.0634         0      47.6     0.245      47.9
      1981    0.0667         0        43     0.243      43.3
      1982      12.9         0      44.6     0.241      57.7
      1983      25.4         0      34.7         0      60.1
      1984      30.8         0      33.3         0      64.1
      1985      35.1         0      28.2         0      63.3
      1986      34.5         0      33.1         0      67.6
      1987      38.5         0      31.6         0        70
      1988      39.5         0      34.2         0      73.7
      1989      41.4         0        33         0      74.4
      1990        44         0      32.7         0      76.7