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

      1950      26.8         0         0         0      26.8
      1951      28.7         0         0         0      28.7
      1952      32.1         0         0         0      32.1
      1953      34.4         0         0         0      34.4
      1954      37.3         0         0         0      37.3
      1955      43.9         0         0         0      43.9
      1956      47.4         0         0         0      47.4
      1957      49.5         0         0         0      49.5
      1958      42.2         0         0         0      42.2
      1959      48.1         0         0         0      48.1
      1960      45.4         0         0         0      45.4
      1961      38.4         0         0         0      38.4
      1962      35.7         0         0         0      35.7
      1963        34         0         0         0        34