Table 7: Domestic Airline Travel on U.S. Carriers,,,,,, ,Monthly,,,Year-to-Date,, ,Apr. 2005,Apr. 2006,Change %,2005,2006,Change % Passengers (in millions),55.3,55.4,0.2,210.0,210.4,0.2 Flights (in thousands),849.2,783.9,-7.7,"3,300.9","3,126.1",-5.3 Revenue Passenger-Miles(in billions) ,47.4,48.6,2.5,180.9,183.8,1.6 Available Seat-Miles(in billions),61.7,59.6,-3.4,242.5,235.7,-2.8 Load Factor*,76.7,81.4,4.7,74.6,78.0,3.4 Flight Stage Length**,599.1,621.4,3.7,602.3,617.8,2.6 Passenger Trip Length***,857.0,877.3,2.4,861.3,873.3,1.4 "Source: Bureau of Transportation Statistics, T-100 Domestic Market and Segment",,,,,, *Change in load factor points,,,,,, **The average non-stop distance flown per departure in miles,,,,,, *** The average distance flown per passenger in miles,,,,,, Note: Percentage changes based on numbers prior to rounding.,,,,,,