1938
1939
1940
1940
1941
1942
1942
1942
1945
1949
1950
1950
1950
1951
1951
1951
1952
1952
1952
1953
1953
1953
1953
1953
1954
1954
1954
1954
1954
1955
1955
1955
1956
1956
1956
1956
1956
1956
1957
1957
1957
1958
1958
1959
1959
1959
1959
1982
1985
1993