Table 4-8M,,,,,,,,,,,,,,,,
Certificated Air Carrier Fuel Consumption and Travela,,,,,,,,,,,,,,,,
,1960,1965,1970,1975,1980,1985,1990,1991,1992,1993,1994,1995,1996,1997,1998,1999
Number of aircraft,"2,135","2,125","2,679","2,495","3,808","4,678","6,083","6,054","7,320","7,297","7,370","7,411","7,478","7,616","R8,111",U
Average kilometers flown per aircraft (thousands),784,"1,074","1,528","R1,500","1,236","1,191","1,250","1,239","1,077","1,129","1,170","1,222","1,260","1,273","R1,234",U
,,,,,,,,,,,,,,,,
Aircraft-kilometers (millions),,,,,,,,,,,,,,,,
Domestic operations,"1,381","1,825","3,328","3,135","4,060","4,902","6,378","6,202","6,429","6,690","7,049","7,450","7,743","R7,904","8,097","8,330"
International operations,293,457,764,607,645,668,"1,223","1,299","1,455","1,547","1,577","1,606","1,679","1,793","1,917","1,926"
,,,,,,,,,,,,,,,,
Fuel consumption (million liters),,,,,,,,,,,,,,,,
Domestic operations,"7,397","14,721","29,742","28,610","34,432","R38,289","R47,049","R43,555","R44,528","R45,270","R47,227","48,499","R49,918","51,709","52,530","54,854"
International operations,"2,143","4,845","8,491","7,378","7,336","R9,418","R15,002","R14,915","R15,596","R15,569","R16,319","R17,076","R17,632","18,791","19,631","19,976"
,,,,,,,,,,,,,,,,
Aircraft-kilometers flown per liter,,,,,,,,,,,,,,,,
Domestic operations,0.19,0.12,0.11,0.11,0.12,0.13,0.14,0.14,0.14,0.15,0.15,0.15,0.16,0.15,0.15,0.15
International operations,0.14,0.09,0.09,0.08,0.09,0.07,0.08,0.09,0.09,0.10,0.10,0.09,0.10,0.10,0.10,0.10
a  Aircraft operating under 14 CFR 121 and 14 CFR 135.,,,,,,,,,,,,,,,,
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KEY:  R = revised; U = data are unavailable.,,,,,,,,,,,,,,,,
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SOURCES:,,,,,,,,,,,,,,,,
Number of aircraft:,,,,,,,,,,,,,,,,
"1960-65: U.S. Department of Transportation, Federal Aviation Administration, FAA Statistical Handbook of Aviation, 1970 edition (Washington, DC: 1970), table 5.3.",,,,,,,,,,,,,,,,
"1970-75: Ibid., FAA Statistical Handbook of Aviation, Calendar Year 1979 (Washington, DC: 1979), table 5.1.",,,,,,,,,,,,,,,,
"1980-85: Ibid., FAA Statistical Handbook of Aviation, Calendar Year 1986 (Washington, DC: 1986), table 5.1.",,,,,,,,,,,,,,,,
"1990-97: Ibid., FAA Statistical Handbook of Aviation, Calendar Year 1997 (Washington, DC: unpublished), personal communication, Mar. 19, 1999.",,,,,,,,,,,,,,,,
"1998-99: Aerospace Industries Association, Aerospace Facts and Figures (Washington DC: Annual Issues), ""Active U.S. Air Carrier Fleet"".",,,,,,,,,,,,,,,,
Aircraft-kilometers flown:,,,,,,,,,,,,,,,,
"1960: Civil Aeronautics Board, Handbook of Airline Statistics 1969 (Washington, DC: 1970), part III, tables 2 and 13.",,,,,,,,,,,,,,,,
"1965-70: Ibid., Handbook of Airline Statistics 1973 (Washington, DC: 1974), part III, tables 2 and 13.",,,,,,,,,,,,,,,,
"1975-80: Ibid., Air Carrier Traffic Statistics (Washington,  DC: December 1976), pp. 4 and 14; and (December 1981), pp. 2 and 3.",,,,,,,,,,,,,,,,
"1985-98: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Air Carrier Traffic Statistics (Washington, DC: Annual issues, December), pp. 2 and 3, line 27 plus line 50.",,,,,,,,,,,,,,,
"1999: Ibid., Internet site http://www.bts.gov/programs/oai, as of July 14, 2000.",,,,,,,,,,,,,,,
Fuel consumption:,,,,,,,,,,,,,,,
"1960-99: U.S. Department of Transportation, Bureau of Transportation Statistics, Office of Airline Information, Internet site http://www.bts.gov/programs/oai/fuel/fuelyearly.html, as of July 5, 2000.",,,,,,,,,,,,,,,
"1999: Ibid., Pesonal communication, July 27, 2000.",,,,,,,,,,,,,,,