Figure 1 - Domestic Air Revenue Freight Ton-Miles, Population, and Real Gross Domestic Product: 1991-2000
Figure 1 - Domestic Air Revenue Freight Ton-Miles, Population, and Real Gross Domestic Product: 1991-2000
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KEY: RTMs = revenue ton-miles; GDP = gross domestic product.
SOURCES: 1991-1995: U.S. Department of Transportation, Federal Aviation Administration,
Airport Activity Statistics of Certificated Route Air Carriers (Washington,
DC: Various years).
1996-2000: U.S. Department of Transportation, Bureau of Transportation Statistics,
Airport Activity Statistics of Certificated Air Carriers (Washington, DC: Various
years).