Table 9: Passenger Revenue per Enplanement as a Percentage of System Operating Expenses (Excluding Fuel/Labor) per Enplanement,,,,,,,, Network,,,,,,,, Ranked by Second Quarter 2006 Performance,,,,,,,, (Passenger Revenue per Enplanement as Percent of Cost per Enplanement),,,,,,,, 2Q 2006 Rank ,Network Carriers,2Q 2001 (%),2Q 2002 (%),2Q 2003 (%),2Q 2004 (%),2Q 2005 (%),2Q 2006 (%),"Change 2Q 2001-2Q 2006" 1,Alaska,99,90,103,125,112,153,54 2,American,63,102,87,110,119,119,56 3,Northwest,105,99,105,88,79,108,3 4,United,88,80,77,79,79,95,7 5,Continental,97,58,148,75,79,92,-5 6,Delta,101,95,45,50,76,90,-11 7,US Airways,98,73,64,79,64,86,-12 ,7-Carrier Average,89,86,80,81,86,100,11 "Source: Bureau of Transportation Statistics, Form 41 Airline Financial Data and T-100 Segment Data",,,,,,,,