Table 7. Airline Domestic Unit Revenue (Cents Per Mile),,,,,,, Low-Cost Carriers ,,,,,,, Ranked by 4th Quarter 2005 Domestic Unit Revenue ,,,,,,, (Domestic Operating Revenue Per Available Seat Mile) ,,,,,,, 4Q 2005 Rank,Low-Cost Carriers,4th Quarter 2004,1st Quarter 2005 ,2nd Quarter 2005 ,3rd Quarter 2005 ,4th Quarter 2005 ,4th Quarter Operating Revenue $(Millions) 1,America West,8.0,10.4,11.4,11.5,11.5,846 2,Frontier,10.2,11.1,10.7,10.9,10.6,234 3,AirTran,8.4,8.5,9.6,9.6,9.9,407 4,Southwest,8.2,8.2,8.0,9.1,9.1,"1,987" 5,Spirit,7.2,8.5,9.2,8.5,8.7,94 6,ATA,5.9,5.8,6.7,7.6,7.4,138 7,JetBlue,6.7,7.2,7.4,7.2,7.0,446 ,Seven-Carrier Total,7.9,8.4,8.7,9.3,9.3,"4,152" "Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2. T100; T2 Data",,,,,,,