| Type
of carrier |
December 2003 and 2004 |
January 2004 and 2005 |
February 2004 and 2005 |
March 2004 and 2005 |
|---|---|---|---|---|
| Network | −3.5 | −4.5 | −5.0 | −5.3 |
| Low cost | 6.5 | 0.3 | 0.3 | −0.9 |
Source: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, Table 1: Passenger Airline Employment, Monthly press releases, 2005, available at www.bts.gov/press-releases.