Table 17: Airline System* Passenger Revenue Yield ,,,,,,,
Airline Groups Ranked by 1st Quarter 2008 Revenue Yield (Cents Per RPM) ,,,,,,,
(Passenger Revenue per Revenue Passenger Mile in cents),,,,,,,
1Q 2008 Rank,Airline  Group,1st Quarter 2007 ,2nd Quarter 2007 ,3rd Quarter 2007,4th Quarter 2007 ,1st Quarter 2008 ,1st Quarter Passenger Revenue $(Millions)
1,Regional,21.1,19.7,19.6,20.8,22.4,"2,556"
2,Network,12.5,12.9,13.0,12.9,13.1,"18,164"
3,Low-Cost ,11.8,11.8,11.5,12.4,12.6,"4,245"
,21-Carrier Total,12.9,13.1,13.1,13.3,13.6,"24,963"
Source: Bureau of Transportation Statistics; Form 41; Schedule P1.2.  T100; T2 Data,,,,,,,
* System = domestic + international,,,,,,,
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