Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 0.189 0 0 0 0.189
1951 0.339 0 0 0 0.339
1952 0.138 0 0 0 0.138
1953 0.221 0 0 0 0.221
1954 0.152 0 0 0 0.152
1955 0.229 0 0 0 0.229
1956 0.0731 0 0 0 0.0731
1957 0.015 0 0 0 0.015
1964 0 0 7.31 0 7.31
1965 0 0 8.58 0 8.58
1966 0 0 9.03 0 9.03
1967 0 0 7.27 0 7.27
1968 0 0 7.79 0 7.79
1969 0 0 9.27 0 9.27
1970 0.0132 0 9.98 0 9.99
1971 0 0 8.78 0 8.78
1972 0 0 10.5 0 10.5
1973 0 0 10.2 0 10.2
1974 0 0 9.71 0 9.71
1975 0 0 8.87 0 8.87
1976 0 0 7.01 0 7.01
1977 0 0 6.08 0 6.08
1978 0 0 5.74 0 5.74
1979 0 0 6.78 0 6.78
1980 0 0 6.02 0 6.02
1981 0 0 6.22 0 6.22
1982 0 0 4.95 0 4.95
1983 0 0 5.22 0 5.22
1984 0 0 2.93 0 2.93
1985 0 0 4.06 0 4.06
1986 0 0 4.6 0 4.6
1987 0 0 2.89 0 2.89
1988 0 0 3.23 0 3.23
1989 0 0 4.57 0 4.57
1990 0 0 4.07 0 4.07