1938

January
February
July
September-October

1947

March-April
May-June
July-August

1948

January-February
March-April
May-June
July-August
September-October
November-December

1949

January-February
February-March
July-August
September-October
November-December

1950

January-February
May-June
July-August
September-October
November-December

1951

January-February
March-April
May-June
July-August
September-October
November-December

1952

January-February
November-December

1953

January-February
March-April