Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 0.101 0 0 0 0.101
1951 0.0849 0 0 0 0.0849
1952 0.0553 0 0 0 0.0553
1953 0.039 0 0 0 0.0389
1954 0.178 0 0 0 0.178
1955 0.148 0 0 0 0.148
1956 0.161 0 0 0 0.161
1958 0.126 0 0 0 0.126
1959 0.0803 0 0 0 0.0803
1960 0.119 0 0 0 0.119
1961 0.131 0 0 0 0.131
1962 0.106 0 0 0 0.106
1963 0.124 0 0 0 0.124
1964 0.0271 0 0 0 0.0271
1965 0.121 0 0 0 0.121
1966 0.119 0 0 0 0.119
1967 0.013 0 0.989 0 1
1968 0.064 0 3.93 0 3.99
1969 0.129 0 2.91 0 3.04
1970 0 0 3.4 0 3.4
1971 0 0 3.82 0 3.82
1972 0 0 3.26 0 3.26
1973 0 0 3.48 0 3.48
1974 0 0 3.55 0 3.55
1975 0 0 3.1 0 3.1
1976 0 0 3.22 0 3.22
1977 0 0 3.47 0 3.47
1978 0 0 3.49 0 3.49
1979 0 0 4.07 0 4.07
1980 0 0 4.07 0 4.07
1981 0 0 4.67 0 4.67
1982 0 0 4.03 0 4.03
1983 0 0 3.56 0 3.56
1984 0 0 3.45 0 3.45
1985 0 0 3.21 0 3.21
1986 0 0 3.79 0 3.79
1987 0 0 3.82 0 3.82
1988 0 0 3.43 0 3.43
1989 0 0 3.36 0 3.36
1990 0 0 3.29 0 3.29