Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1926 0 0 2.2 0 2.2
1927 0 0 2.14 0 2.14
1928 0 0 2.81 0 2.81
1929 0 0 2.66 0 2.66
1930 0 0 1 0 1
1931 0 0 0.86 0 0.86
1932 0 0 0.207 0 0.207
1933 0.751 0 0.772 0 1.52
1934 2.1 0 0.382 0 2.48
1935 3.16 0 1.23 0 4.39
1936 3.28 0 1.9 0 5.17
1937 2.85 0 2.08 0 4.93
1938 2.77 0 2.68 0 5.44
1939 2.92 0 6.84 0 9.76
1940 4.36 0 3.86 0 8.22
1941 3.37 0 3.13 0 6.5
1942 4.84 0 3.68 0 8.52
1943 4.05 0 3.24 0 7.29
1944 4.18 0 4.8 0 8.99
1945 4.48 0 3.98 0 8.46
1946 4.62 0 5.24 0 9.86
1947 4.25 0 6.03 0 10.3
1948 4.31 0 5.46 0 9.78
1949 4.37 0 6.14 0 10.5
1950 8.48 0 10.1 0 18.6
1951 9.37 0 9.76 0 19.1
1952 8.12 0 10.8 0 18.9
1953 10.3 0 12.6 0 22.9
1954 12.6 0 7.6 0 20.2
1955 15.6 0 12.2 0 27.7
1956 16.8 0 12 0 28.9
1957 16.8 0 14.1 0 30.9
1958 20.6 0 15.6 0 36.2
1959 20.9 0 16.3 0 37.2
1960 21.9 0 15.4 0 37.3
1961 23.6 0 15.2 0 38.8
1962 25.3 0 15.6 0 40.9
1963 27 0 16.5 0 43.5
1964 25.3 0 17.7 0 43.1
1965 23.6 0 17.5 0 41.2
1966 21.1 0 18.9 0 40
1967 26.2 0 20.9 0 47.1
1968 26.2 0 25.1 0 51.3
1969 28.1 0 25.9 0 53.9
1970 19.1 0 26.9 0 46
1971 21.5 0 26.7 0 48.2
1972 22.2 0 27.4 0 49.5
1973 25.8 0 27.5 0 53.3
1974 27.7 0 31.4 0 59.1
1975 29.2 0 29.6 0 58.8
1976 30.6 0 30.7 0.182 61.6
1977 31.3 0 34.7 0.21 66.3
1978 32.8 0 31.5 0.263 64.5
1979 38.1 0 30.5 0.695 69.3
1980 34.2 0 32.2 0.864 67.2
1981 36 0 32.7 0.0906 68.8
1982 36.1 0 30.6 0.211 66.9
1983 39.9 0 33.6 10.5 84
1984 48.3 0 34.3 13.5 96.1
1985 46.3 0 32.3 9.44 88
1986 39.9 0 33.4 13.9 87.2
1987 36.7 0 38.8 15 90.6
1988 39.8 0 36.1 11.7 87.5
1989 46.3 0 37.3 12.2 95.8
1990 46.9 0 37.2 12.6 96.7