Table 2: Year-to-Year Changes in the Air Travel Price Index (ATPI) since 1995,, "(for U.S.-Origin Itineraries, Third Quarter to Third Quarter, First Quarter 1995 = 100)",, Year,ATPI,Percentage Change from Previous Year 1995,100.4, 1996,98.4,-2.0 1997,102.2,3.9 1998,99.5,-2.7 1999,100.4,1.0 ,, 2000,109.0,8.5 2001,106.1,-2.7 2002,103.4,-2.5 2003,105.5,2.1 2004,102.5,-2.9 Source: BTS - Based on calculations using data from the BTS Passenger Origin and Destination (O&D) Survey,, ,, ,,