Year H.Coal B.Coal Oil Smelting Total
kt/a kt/a kt/a kt/a kt/a
1950 0.0126 0 0 0 0.0126
1951 0.0849 0 0 0 0.0849
1952 0.0138 0 0 0 0.0138
1953 0.026 0 0 0 0.026
1955 0.0135 0 0 0 0.0135
1956 0.0293 0 0 0 0.0293