Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 0.398 0 0 0 0.398
1951 0.379 0 0 0 0.379
1952 0.417 0 0 0 0.417
1953 0.391 0 0 0 0.391
1954 0.349 0 0 0 0.349
1955 0.439 0 0 0 0.439
1956 0.37 0 0 0 0.37
1957 0.418 0 0 0 0.418
1958 0.56 0 0 0 0.56
1959 0.461 0 0 0 0.461
1960 0.606 0 0 0 0.606
1961 0.59 0 0 0 0.59
1962 0.54 0 0 0 0.54
1963 0.72 0 0 0 0.72
1964 0.451 0 0 0 0.451
1965 0.384 0 0 0 0.384
1966 0.526 0 0 0 0.526
1967 0.603 0 0 0 0.603
1968 0.509 0 0 0 0.509
1969 0.392 0 0 0 0.392
1970 0.382 0 0 0 0.382
1971 0.349 0 0 0 0.349
1972 0.0898 0 0 0 0.0898
1973 0.179 0 0 0 0.179
1974 0.0961 0 0 0 0.0961
1976 0.0481 0 0 0 0.0481
1978 0.033 0 0 0 0.033
1979 0.0357 0 0 0 0.0357
1980 0.0254 0 0 0 0.0254
1981 0.0267 0 0 0 0.0267
1982 0.013 0 0 0 0.013
1983 0.0119 0 0 0 0.0119
1984 0.0115 0 0 0 0.0115