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Table 13. Systemwide Load Factor on U.S. Airlines, Unadjusted

Systemwide (Domestic + International) RPMs/ASMs (both unadjusted) in percent, Scheduled service only

2013201420152016
January78.980.379.180.2
February79.279.880.278.8
March84.383.583.983.6
April81.683.482.582.0
May84.285.084.183.8
June87.086.486.486.6
July86.686.787.486.8
August86.186.586.484.6
September81.681.983.083.3
October82.282.885.083.8
November79.379.882.483.1
December84.482.682.982.8
Yr. Value83.183.483.883.4
Notes: 

Load factor is a measure of the use of aircraft capacity that compares Revenue Passenger-Miles (RPMs) as a proportion of Available Seat-Miles (ASMs).

Source: 

Bureau of Transportation Statistics, T-100 Segment