Table 3-6,,,,,,,,,,,,,,,, National Transportation and Economic Trends,,,,,,,,,,,,,,,, ,1960,1965,1970,1975,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999 Passenger-miles (billions)R,"1,327","1,630","2,170","2,561","2,895","3,326","3,946","3,976","4,089","4,165","4,262","4,333","4,483","4,623","4,749",U Index (1980 = 100),46,56,75,88,100,115,136,137,141,144,147,150,155,160,164,U ,,,,,,,,,,,,,,,, Ton-miles (billions),"1,562","1,854","2,207","2,285",R2989,"2,949","3,196","3,233","3,337","3,364",R3527,"3,648","3,725", R3682,"3,710",U Index (1980 = 100),52,62,74,76,100,99,107, R108, R112, R113, R118,122,125, R123,124,U ,,,,,,,,,,,,,,,, Populationa (millions),181,194,205,216,228,238,250,253,255,258,261,263,265,268,271,U Index (1980 = 100),79,85,90,95,100,104,110, R111, R112, R113, R114,115,116,118,119,U ,,,,,,,,,,,,,,,, Industrial Production Indexb ,,,,,,,,,,,,,,,, (1992 = 100)R,37,50,59,63,80,88,99, R97, R100, R103, R109,114, R119,127,R132,P137 ,,,,,,,,,,,,,,,, Gross Domestic Product,,,,,,,,,,,,,,,, Current $ (billions),527,719,"1,036","1,063","2,784","4,181","5,744","5,917","6,244","6,558","6,947","7,270","7,662","8,111"," R8,760","9,255" Index (1980 = 100),19,26,37, R38,100,150,206, R213, R224,R236,R250,261,275,291, R315,332 Chained (1992) $ (billions),"2,263","2,881","3,398","3,398","4,615","5,324","6,136","6,669","6,891","7,054","7,338","6,762","6,995","7,270","8,516","8,867" a Estimates as of July 1. Includes Armed Forces abroad.,,,,,,,,,,,,,,,, "b Industrial Production Index covers manufacturing, mining, and utilities.",,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,, KEY: P = preliminary; R = revised; U = data are not available.,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,, SOURCES:,,,,,,,,,,,,,,,, Passenger-miles:,,,,,,,,,,,,,,,, 1960-98: Summation of all modes from the passenger-miles table in chapter 1.,,,,,,,,,,,,,,,, Ton-miles:,,,,,,,,,,,,,,,, 1960-98: Summation of all modes from the ton-miles table in chapter 1.,,,,,,,,,,,,,,,, Population:,,,,,,,,,,,,,,,, "1960-98: U.S. Department of Commerce, Census Bureau, Statistical Abstract of the United States, 1999 (Washington, DC: 1999), table 2.",,,,,,,,,,,,,,,, Industrial Production Index:,,,,,,,,,,,,,,,, "1960-99: Council of Economic Advisors, Economic Report of the President (Washington, DC: February 2000), table B-49.",,,,,,,,,,,,,,, Gross Domestic Product:,,,,,,,,,,,,,,, "1960-97: U.S. Department of Commerce, Bureau of Economic Analysis, Survey of Current Business (Washington, DC: August 1998), table 1, pp. 147-148, and table 2A, pp. 151-152.",,,,,,,,,,,,,,, "1998-99: Ibid., Survey of Current Business (Washington, DC: February 2000), tables 1.1 and 1.2.",,,,,,,,,,,,,,,