Table 5.  Airline Domestic Unit Revenue (Cents Per Mile),,,,,,,
Passenger Airlines by Group ,,,,,,,
Ranked by 1st Quarter 2006 Domestic Unit Revenue ,,,,,,,
(Domestic Operating Revenue Per Available Seat Mile),,,,,,,
1Q 2006 Rank,,1st Quarter 2005 ,2nd Quarter 2005 ,3rd Quarter 2005 ,4th Quarter 2005 ,1st Quarter 2006 ,1st Quarter Operating Revenue $(Millions)
1,Regional Carriers,14.5,14.3,14.5,15.0,15.4,"2,331.3"
2,Network Carriers,12.0,13.3,13.4,13.9,14.4,"15,449.4"
3,Low-Cost Carriers* ,8.4,8.7,9.3,9.3,9.5,"4,125.6"
,21-Carrier Total*,11.3,12.3,12.5,12.8,13.2,"21,906.3"
"Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2.  T100; T2 Data",,,,,,,
"* First Quarter 2006 numbers do not include ATA Airlines, which was granted an extension to file until June 30.",,,,,,,