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

      1950        28         0      1.65         0      29.7
      1951      37.1         0       1.7         0      38.8
      1952        39         0       1.9         0      40.9
      1953      35.9         0      2.09         0        38
      1954      33.2         0      2.21         0      35.4
      1955      32.3         0      2.26         0      34.6
      1956      42.1         0      2.21         0      44.3
      1957      36.9         0      2.12         0        39
      1958      39.9         0      2.07         0        42
      1959      37.6         0      2.07         0      39.6
      1960      46.8         0      2.23         0        49
      1961        48         0      2.27         0      50.3
      1962      51.6         0      5.25         0      56.9
      1963      59.8         0      16.7         0      76.5
      1964      56.7         0      18.6         0      75.3
      1965      56.1         0      19.4         0      75.6
      1966      50.7         0      19.2         0      69.9
      1967      52.5         0      20.6         0      73.1
      1968      54.9         0        24         0      78.9
      1969      53.6         0      28.1         0      81.7
      1970      50.7         0      25.9         0      76.6
      1971      48.1         0      20.7         0      68.8