Figure 1: Growth in U.S. Highway Passenger Vehicle Miles Traveled, Real Personal Income, and Population (Percent Change since 1970)

(Percent)

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Source: Calculated from U.S. Department of Transportation, Federal Highway Administration, Highway Statistics, Table VM-1, Passenger Cars and Other 2-axle 4-tire Vehicles, various years. U.S. Department of Commerce, Bureau of Economic Analysis, Table 2.1 Personal Income and Its Disposition. U.S. Census Bureau, Annual Population Estimates for the United States, as of July 1 of each year.