Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 0.151 0 0 0 0.151
1951 0.141 0 0 0 0.141
1952 0.0553 0 0 0 0.0553
1953 0.0649 0 0 0 0.0649
1954 0.0508 0 0.813 0 0.864
1955 0.0405 0 5.2 0 5.24
1956 0.0878 0 16.4 0 16.5
1957 0.06 0 21.1 0 21.2
1958 0.014 0 35.7 0 35.7
1959 0 0 37.5 0 37.5
1960 0 0 36.3 0 36.3
1961 0 0 39.8 0 39.8
1962 0 0 39.7 0 39.7
1963 0 0 42.4 0 42.4
1964 0 0 40.3 0 40.3
1965 0 0 39.8 0 39.8
1966 0 0 47.8 0 47.8
1967 0 0 51.8 0 51.8
1968 0 0 59.1 0 59.1
1969 0 0 63.2 0 63.2
1970 0 0 55 0 55
1971 0 0 54.7 0 54.7
1972 0 0 56 0 56
1973 0 0 58.3 0 58.3
1974 0 0 63.3 0 63.3
1975 0 0 58.9 0 58.9
1976 0 0 63.5 0 63.5
1977 0 0 63.6 0 63.6
1978 0 0 61.8 0 61.8
1979 0 0 55.9 0 55.9
1980 0 0 52 0 52
1981 0 0 41.9 0 41.9
1982 0 0 25.3 0 25.3
1983 2.03 0 21 0 23
1984 1.15 0 23.2 0 24.4
1985 1.14 0 20.4 0 21.5
1986 2.24 0 22 0 24.2
1987 2.19 0 25.4 0 27.6
1988 2.23 0 21.2 0 23.4
1989 2.26 0 22.4 0 24.6
1990 2.25 0 28 0 30.3