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

      1921  0.000209         0         0         0  0.000209
      1922  0.000418         0         0         0  0.000418
      1923  0.000627         0         0         0  0.000627
      1924  0.000837         0         0         0  0.000837
      1925   0.00105         0         0         0   0.00105
      1926   0.00126         0         0         0   0.00126
      1927   0.00147         0         0         0   0.00147
      1928   0.00168         0         0         0   0.00168
      1929   0.00189         0         0         0   0.00189
      1930    0.0021         0         0         0    0.0021
      1931   0.00231         0         0         0   0.00231
      1932   0.00252         0         0         0   0.00252
      1933   0.00273         0         0         0   0.00273
      1934   0.00294         0         0         0   0.00294
      1935   0.00315         0         0         0   0.00315
      1936   0.00336         0         0         0   0.00336
      1937   0.00357         0         0         0   0.00357
      1938   0.00378         0         0         0   0.00378
      1939     0.004         0         0         0     0.004
      1940   0.00421         0         0         0   0.00421
      1941   0.00442         0         0         0   0.00442
      1942   0.00463         0         0         0   0.00463
      1943   0.00484         0         0         0   0.00484
      1944   0.00506         0         0         0   0.00506
      1945   0.00527         0         0         0   0.00527
      1946   0.00548         0         0         0   0.00548
      1947   0.00569         0         0         0   0.00569
      1948   0.00591         0         0         0   0.00591
      1949   0.00612         0         0         0   0.00612
      1950     0.729         0         0         0     0.729
      1951     0.735         0         0         0     0.735
      1952      1.01         0         0         0      1.01
      1953     0.753         0         0         0     0.753
      1954     0.674         0         0         0     0.674
      1955    0.0805         0         0         0    0.0805
      1956    0.0993         0         0         0    0.0993
      1957    0.0131         0         0         0    0.0131
      1958    0.0131         0         0         0    0.0131
      1959    0.0262         0         0         0    0.0262
      1960    0.0262         0         0         0    0.0262
      1961    0.0262         0         0         0    0.0262
      1962    0.0394         0         0         0    0.0394
      1963    0.0263         0         0         0    0.0263
      1964    0.0131         0         0         0    0.0131
      1965    0.0263         0         0         0    0.0263
      1966    0.0394         0      1.87         0      1.91
      1967    0.0263         0       4.5         0      4.53
      1968    0.0395         0      4.86         0       4.9
      1969    0.0395         0      3.76         0       3.8