Table 14. Domestic Passenger Revenue Yield (Cents per Mile),,,,,,, Network Carriers,,,,,,, Ranked by 1st Quarter 2006 Domestic Revenue Yield ,,,,,,, (Domestic Passenger Revenue per Revenue Passenger Mile in cents),,,,,,, 1Q 2006 Rank,Network Carriers,1st Quarter 2005 ,2nd Quarter 2005 ,3rd Quarter 2005 ,4th Quarter 2005 ,1st Quarter 2006 ,1st Quarter Passenger Revenue $(Millions) 1,US Airways,12.4,13.2,13.0,14.8,15.6,997.5 2,Northwest,12.8,13.3,12.9,13.1,13.5,"1,328.5" 3,Alaska,11.9,12.8,13.4,14.0,13.2,464.8 4,American,11.6,11.7,11.5,12.1,12.7,"2,790.2" 5,Continental,12.1,12.2,11.6,11.9,12.5,"1,285.1" 6,United,10.8,11.1,11.3,11.6,11.9,"1,978.7" 7,Delta,11.1,11.2,10.6,11.5,11.5,"1,850.6" ,Seven-Carrier Total,11.6,11.9,11.7,12.2,12.7,"10,695.3" Source: Bureau of Transportation Statistics; Form 41; Schedule P1.2. T100; T2 Data.,,,,,,,