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
1952 0.0138 0 0 0 0.0138
1959 0.0268 0 0 0 0.0268
1961 0.0393 0 0 0 0.0393