Table 4: Percent changes in the Transportation Services Index from Year-to-Year,,,,,,,, April TSI,,,,,,,, (Monthly average of 2000 = 100),,,,,,,, ,TSI,Percent change from same month previous year,,,,,, 1997,91.1,6.0,,,,,, 1998,97.4,6.9,,,,,, 1999,99.8,2.4,,,,,, 2000,98.2,-1.5,,,,,, 2001,99.4,1.2,,,,,, 2002,97.7,-1.7,,,,,, 2003,99.9,2.2,,,,,, 2004,108.7,8.8,,,,,, 2005,111.6,2.7,,,,,, 2006P,111.2,-0.3,,,,,, SOURCE: Bureau of Transportation Statistics,,,,,,,, " NOTE: P = preliminary",,,,,,,,