TIMBER TRENDS IN THE UNITED STATES 



POPULATION & ECONOMIC GROWTH 



4000 



2000 



1000 



600 



Gross National Product (billions of 1961 dollars) 



.**: 



Disposable Personal Income 

 (billions of 1961 dollars) 



200 



60 

 40 



Households (millions) 



20 



1920 



1940 



1960 



1980 



2000 



Figure 1 



Table 1. — Population and households in the United 

 States, 1920-2000 





Population 



Households 



Year 



Total 



Annual 



rate of 



increase ' 



Number 



Persons 

 per house- 

 hold 



1920 



1930 



1940 



1950 



1960 



1962 



Million 

 106.5 

 123.2 

 132.1 

 152.3 

 180.7 

 186.7 



Percent 

 1.4 

 1.5 

 0.7 

 1.4 

 1.7 



Million 

 24.4 

 29.9 

 34.9 

 43.0 

 53.0 

 54.7 



Number 

 4.36 

 4.12 

 3.79 

 3.54 

 3.41 

 3.41 









PROJECTIONS 



1970 

 1980 

 1990 

 2000 



208 







241 







280 







325 







1.4 

 1.5 

 1.5 

 1.5 



62.5 



73.5 



86.2 



101.0 



3.33 



3.28 

 3.25 

 3.22 



' Rates are averages for decade ending in specified year. 



Sources: POPULATION: 1920-40, U.S. Department 

 of Commerce- Bureau of the Census, Historical Statistics of 

 the United States, 1960. 1950-62, "Estimates of the Popu- 

 lation of the United States, January 1, 1950, to March 1, 

 1964." Population Estimates, 1964 (Current PopultiDn 

 Reports, Series P-25, No. 283). Projections are derived 

 from estimates published by the U.S. Department of 

 Commerce, Bureau of the Census in "Projections of the 

 Population of the United States by Age and Sex: 1964 to 

 1985 with Extensions to 2010." Population Estimates 

 July 1964, (Current Population Reports, Series P-25, 

 No. 286). 



NUMBER OF HOUSEHOLDS: 1920-40, Bureau of 

 the Census, Census of Housing, 1950, vol. I, Part 1, 1953. 

 1950 and 1960, Bureau of the Census, "Components of 

 Inventory Change." United States Ce7isus of Housing, 

 1960, vol. IV, Part 1-A, 1962, and from unpublished data 

 furnished by the Bureau of the Census. 1962, "House- 

 holds and Families, by Type: 1962." Population Charac- 

 teristics, 1962 (Current Population Reports, Series P-20, 

 No. 119). Projections, 1970 and 1980, U.S. Department 

 of Agriculture, Forest Service, derived from projections 

 published by the U.S. Department of Commerce, Bureau 

 of the Census, "Interim Revised Projections of the Num- 

 ber of Households and Families: 1965 to 1980." Popula- 

 tion Characteristics, 1963 (Current Population Reports, 

 Series P-20, No. 123). 1990 and 2000, derived from popu- 

 lation estimates and assumed trend in number of persons 

 per household. 



