Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1935                   Oct    
1936   Feb Mar           Sep      
1938             Jul Aug Sep   Nov Dec
1940           Jun   Aug        
1941     Mar       Jul          
1942       Apr   Jun            
1948 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1949 Jan Feb Mar Apr May Jun Jul Aug        
1950 Jan Feb Mar Apr May Jun   Aug Sep Oct Nov Dec
1951 Jan Feb   Apr May              
1954             Jul          
1965       Apr           Oct    
1967                   Oct    
1968                 Sep      
1969   Feb     May             Dec
1998               Aug