
Jan 
Feb 
Mar 
Apr 
May 
Jun 
Jul 
Aug 
Sep 
Oct 
Nov 
Dec 
1970 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 
N/A 

N/A 
N/A 
N/A 
N/A 
1971 


N/A 






N/A 
N/A 

1972 
N/A 
N/A 





N/A 
N/A 
N/A 
N/A 

1973 












1974 








N/A 



1975 


N/A 







N/A 

1976 
N/A 
N/A 
N/A 



N/A 
N/A 
N/A 
N/A 
N/A 

1977 
N/A 




N/A 

N/A 
N/A 

N/A 
N/A 
1978 
N/A 
N/A 





N/A 

N/A 
N/A 
N/A 
1979 
N/A 
N/A 
N/A 

N/A 
N/A 



N/A 
N/A 
N/A 