Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 1.19 0 0 0 1.19
1951 0.962 0 0 0 0.962
1952 0.829 0 0 0 0.829
1953 0.623 0 0 0 0.623
1954 0.546 0 0 0 0.546
1955 0.823 0 0 0 0.823
1956 0.629 0 0 0 0.629
1957 0.51 0 0 0 0.51
1958 0.421 0 0 0 0.421
1959 0.375 0 0 0 0.375
1960 0.292 0 0 0 0.292
1961 0.223 0 0 0 0.223
1962 0.212 0 0 0 0.212
1963 0.152 0 0 0 0.152
1964 0.176 0 0 0 0.176
1965 0.0939 0 0 0 0.0939
1966 0.0661 0 0 0 0.0661
1967 0.0651 0 0 0 0.0651
1968 0.0384 0 0 0 0.0384
1969 0.0258 0 0 0 0.0258
1970 0.0132 0 0 0 0.0132
1971 0.0125 0 0 0 0.0125
1972 0.0124 0 0 0 0.0124
1973 0.012 0 0 0 0.012
1979 0.119 0 0 0 0.119
1980 0.152 0 0 0 0.152
1981 0.267 0 0 0 0.267
1982 0.312 0 0 0 0.312
1983 0.439 0 0 0 0.439
1984 0.634 0 0 0 0.634
1985 0.79 0 0 0 0.79
1986 0.828 0 0 0 0.828
1987 0.656 0 0 0 0.656
1988 0.748 0 0 0 0.748
1989 0.801 0 0 0 0.801
1990 0.788 0 0 0 0.788