Table 3. Average Percentage Change in TSI due to Changes in Seasonal Factors by Month (1990-2006),,,
Month,Freight,Passenger,Combined
January,-0.01,0.53,0.13
February,0.15,0.36,0.20
March,0.07,-0.06,0.03
April,-0.05,0.59,0.13
May,-0.08,0.09,-0.03
June,-0.07,0.02,-0.05
July,-0.05,0.07,-0.02
August,-0.17,0.15,-0.08
September,-0.02,-0.07,-0.04
October,0.02,0.06,0.04
November,0.08,-0.21,-0.01
December,0.06,0.34,0.14
Source: Bureau of Transportation Statistics,,,