W lutym 1949 r . - 16.991 ton , w lutym 1950 r . - 59.269 ton , wreszcie w marcu 1949 r . - 29.168 ton , a w marcu 1950 - 82.756 ton .
In February 1949 - 16,991 tons, in February 1950 - 59,269 tons, finally in March 1949 - 29,168 tons, and in March 1950 - 82,756 tons.