Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1904 0.0423 0 0 0 0.0423
1905 0.0847 0 0 0 0.0847
1906 0.127 0 0 0 0.127
1907 0.17 0 0 0 0.17
1908 0.212 0 0 0 0.212
1909 0.254 0 0 0 0.254
1910 0.297 0 0 0 0.297
1911 0.34 0 0 0 0.34
1912 0.382 0 0 0 0.382
1913 0.425 0 0 0 0.425
1914 0.467 0 0 0 0.467
1915 0.51 0 0 0 0.51
1916 0.553 0 0 0 0.553
1917 0.596 0 0 0 0.596
1918 0.638 0 0 0 0.638
1919 0.681 0 0 0 0.681
1920 0.724 0 0 0 0.724
1921 0.767 0 0 0 0.767
1922 0.81 0 0 0 0.81
1923 0.853 0 0 0 0.853
1924 0.896 0 0 0 0.896
1925 0.938 0 0 0 0.938
1926 0.982 0 0 0 0.982
1927 1.02 0 0 0 1.02
1928 1.07 0 0 0 1.07
1929 1.11 0 0 0 1.11
1930 1.15 0 0 0 1.15
1931 1.2 0 0 0 1.2
1932 1.24 0 0 0 1.24
1933 1.28 0 0 0 1.28
1934 1.33 0 0 0 1.33
1935 1.37 0 0 0 1.37
1936 1.41 0 0 0 1.41
1937 1.46 0 0 0 1.46
1938 1.5 0 0 0 1.5
1939 1.54 0 0 0 1.54
1940 1.59 0 0 0 1.59
1941 1.63 0 0 0 1.63
1942 1.67 0 0 0 1.67
1943 1.72 0 0 0 1.72
1944 1.76 0 0 0 1.76
1945 1.8 0 0 0 1.8
1946 1.85 0 0 0 1.85
1947 1.89 0 0 0 1.89
1948 1.94 0 0 0 1.94
1949 1.98 0 0 0 1.98
1971 0 0 0 0.961 0.961
1972 0.105 0 0 1.89 2
1973 0.263 0 0 2.79 3.05
1974 0.435 0 0 3.66 4.09
1975 0.936 0 0 8.66 9.6
1976 2.95 0 0 16.5 19.5
1977 3.88 0 0 15.4 19.3
1978 4.14 0 0 19.4 23.6
1979 4.69 0 0 19.2 23.9
1980 4.9 0 0 19 23.9
1981 5.02 0 0 25.4 30.5
1982 5.47 0 0 25.2 30.7
1983 5.22 0 0 27.4 32.6
1984 5.2 0 0 28.3 33.5
1985 5.78 0 0 28.9 34.7
1986 6.6 0 0 31 37.6
1987 7.67 0 0 31.1 38.8
1988 8.12 0 0 30.6 38.7
1989 8.39 0 0 29.1 37.5
1990 8.42 0 0 27.1 35.5