Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 0.415 0 0 0 0.415
1951 0.382 0 0 0 0.382
1952 0.235 0 0 0 0.235
1953 0.026 0 0 0 0.026
1954 0.0889 0 0 0 0.0889
1955 0.121 0 0 0 0.121