Trends 

 3,000 



2.500 - 



3585 



2.000 



1,500 



8 

 I 



$ 1,000 



500 - 



1950 



1955 



I960 



1965 



1970 



1975 



1980 



Figure 29-3. — Gross national product of the United States in current dollars and in 

 constant (1972) dollars. (Drawing after McKeever and Hatfield.^) 



