|Has had no effect||70||73||74||70|
|Less inclined to travel by air||25||22||20||25|
|More inclined to travel by air||6||5||6||6|
NOTE: Respondents are interviewed the first two weeks of a month about their travel behavior during the prior month. Sampling error for each month is +/- 5%.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Omnibus Household Survey, April-October 2002.