Bureau of Transportation Statistics (BTS)
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Table E1
Forecasts and Forecast Errors for Air RPM

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  Air RPM Forecast of Air RPM before 9/11-01 Forecast error Absolute percent error
Mar-01 62,323,049      
Apr-01 59,801,562      
May-01 60,246,477      
Jun-01 64,987,625      
Jul-01 68,573,410      
Aug-01 69,003,617      
Sep-01 39,106,905 58,390,903.8 19,283,998.8 49.31%
Oct-01 44,271,037 61,261,140.5 16,990,103.5 38.38%
Nov-01 45,245,063 58,337,950.0 13,092,887.0 28.94%
Dec-01 48,167,518 57,977,550.1 9,810,032.1 20.37%
Jan-02 46,587,818 55,752,782.9 9,164,964.9 19.67%
Feb-02 45,157,533 52,754,058.8 7,596,525.8 16.82%
Mar-02 57,423,155 64,478,755.6 7,055,600.6 12.29%
Apr-02 53,013,066 61,791,637.4 8,778,571.4 16.56%
May-02 55,663,570 62,679,059.3 7,015,489.3 12.60%


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