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

      1950       2.9         0         0         0       2.9
      1951      2.59         0         0         0      2.59
      1952      1.11         0         0         0      1.11
      1953     0.636         0         0         0     0.636
      1954     0.432         0         0         0     0.432
      1955     0.553         0         0         0     0.553
      1956     0.468         0         0         0     0.468
      1957     0.555         0         0         0     0.555
      1958      0.21         0         0         0      0.21
      1959    0.0937         0         0         0    0.0937
      1960    0.0929         0         0         0    0.0929
      1961    0.0787         0         0         0    0.0787
      1962    0.0265         0         0         0    0.0265
      1963    0.0414         0         0         0    0.0414
      1964    0.0271         0         0         0    0.0271
      1965    0.0268         0         0         0    0.0268
      1966    0.0264         0         0         0    0.0264
      1967     0.013         0         0         0     0.013
      1968    0.0128         0         0         0    0.0128