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

      1947      3.02         0         0         0      3.02
      1949      6.96         0         0         0      6.96
      1950      6.44         0         0         0      6.44
      1951      12.2         0         0         0      12.2
      1952      14.2         0         0         0      14.2
      1953      14.1         0         0        31      45.1
      1954      17.1         0         0        31      48.1
      1955      22.7         0         0      30.7      53.4
      1956      26.1         0         0      30.3      56.5
      1957      27.1         0         0      28.9        56
      1958      28.1         0         0      25.2      53.3
      1959      31.7         0         0      21.7      53.4
      1960      34.7         0         0      18.8      53.5
      1961      40.7         0         0        31      71.7
      1962      49.3         0     0.262      29.1      78.6
      1963      58.2         0     0.368      28.1      86.7
      1964      63.7         0      6.01        20      89.8
      1965      67.3         0      9.99      3.41      80.7
      1966      76.1         0      13.5      5.08      94.6
      1967      81.4         0      17.9      6.53       106
      1968      66.5         0      32.1      8.87       107
      1969      66.4         0      45.8      10.1       122
      1970      79.6         0      56.6      11.6       148
      1971      82.1         0      66.3      10.7       159
      1972      80.7         0      69.7      9.85       160
      1973      95.3         0      78.6      9.06       183
      1974       110         0      94.8       8.3       213
      1975       124         0      95.5      8.17       228
      1976       126         0       100      8.53       235
      1977       138         0       125      9.31       272
      1978       150         0       131      8.36       290
      1979       196         0       146      7.35       349
      1980       221         0       160      7.07       388
      1981       285         0       155      7.32       448
      1982       280         0       131      7.58       419
      1983       259         0       124      6.74       391
      1984       292         0       130      5.89       428
      1985       390         0       121      5.31       516
      1986       399         0       141      4.72       545
      1987       394         0       139      3.48       536
      1988       436         0       167      3.21       606
      1989       422         0       184      3.53       610
      1990       386         0       188      3.41       577