Table 1: Quarterly Domestic Operating profit/loss margin (in percent),,,,,,, Passenger Airlines by Group ,,,,,,, Ranked by 3rd Quarter 2005 Margin ,,,,,,, (Operating Profit/Loss as Percent of Total Operating Revenue),,,,,,, 3Q 2005 Rank,,3rd Quarter 2004 (%),4th Quarter 2004 (%),1st Quarter 2005 (%),2nd Quarter 2005 (%),3rd Quarter 2005 (%),3rd Quarter Operating Profit/Loss $(Millions) 1,Regional Carriers,11.0,10.4,8.5,10.7,7.4,177.2 2,Low-Cost Carriers,3.6,-11.5,-4.3,5.3,2.1,89.0 3,Network Carriers,-7.6,-15.8,-9.9,-2.2,-2.2,-711.4 ,21-Carrier Total,-3.8,-12.2,-6.9,0.4,-2.0,-445.2 "Source: Bureau of Transportation Statistics; Form 41, Schedule P1.2 ",,,,,,,