IV-258 



Figure IV. 4. 4 shows a steadily rising trend and projection of 

 United States personal Income. Total personal Income 1s expected 

 to rise at a 5.1 percent annual rate of growth from 1970 to 2020. 

 In terms of constant 1958 dollars, this represents an Increase from 

 about $615 billion to nearly $5 trillion in 2020. Similarly, per- 

 worker earnings will increase substantially, rising from $6,000 in 

 1920 to $23,000 by 2020 as Figure IV. 4. 5 shows. 



Within the economy, considerable variation 1n the rates of growth of 

 various sectors 1s expected. "Goods-producing" Industries such as 

 agriculture, mining, and manufacturing will decrease 1n relative 

 Importance, while those which are "service-producing" (e.g., contract 

 construction, trade and finance, and government) will Increase. This 

 changing pattern of employment 1s exhibited in Figure IV. 4. 6. This 

 figure gives a detailed account of percentages of national employment 

 by broad industrial category. 



The fact that employment in agriculture, forestry, and fisheries is 

 expected to show a steady decline from 12.5 percent of total national 

 employment 1n 1950 to 1.2 percent 1n 2020 is worthy of speical atten- 

 tion, for combining all three of these categories masks the changes 

 that are actually taking place. A Bureau of Labor Statistics study 

 which treats each of the three categories separately for the years 

 1960-1975 anticipates: 



(1) 1,978,000 fewer agricultural workers in 1975 than in 

 1960 (a percentage drop from 8.6 percent to 4.2 percent); 



