Table 11-7. (Concluded) 



Year 



1950 

 1951 

 1952 

 1953 

 1954 

 1955 

 1956 

 1957 

 1958 

 1959 

 1960 

 1961 

 1962 

 1963 

 1964 

 1965 

 1966 

 1967 

 1968 

 1969 

 1970 

 1971 

 1972 

 1973 

 1974 

 1975 

 1976 



11-38 



