"Table 1: Freight, Passenger and Combined Transportation Services Indexes Since December 2006 ",,,,,,, Percent Change by Month ,,,,,,, "(Seasonally Adjusted, Monthly Average of 2000 = 100)",,,,,,, ,Freight,,Passenger,,Combined,, ,Index,Pct. Change ,Index,Pct. Change ,Index,Pct. Change , December,108.9,0.6,114.2,1.1,109.8,0.7, January ,108.5,-0.3,114.0,-0.1,109.5,-0.3, FebruaryR,108.5,0.0,111.7,-2.0,109.0,-0.5, MarchP,109.7,1.1,114.6,2.6,110.6,1.5, AprilP,109.6,-0.1,115.4,0.7,110.7,0.1, MayP,109.7,0.1,115.5,0.2,110.8,0.1, JuneP,108.9,-0.7,114.7,-0.7,110.0,-0.7, SOURCE: Bureau of Transportation Statistics,,,,,,, NOTE: P = preliminary; R = revised,,,,,,, NOTE: Percent changes based on numbers prior to rounding.,,,,,,, ,,,,,,, ,,,,,,, ,,,,,,, ,,,,,,, ,,,,,,, ,,,,,,, ,,,,,,,