NOTES:Commercial aircraft are aircraft of air carriers providing scheduled or nonscheduled
passenger or freight service, including commuter and air taxi on-demand services. Major airlines
include only commercial airlines with operating revenues greater than $1 billion annually. See table 11-14 notes in appendix B for additional information.
SOURCE: USDOT, BTS, calculations based on USDOT, BTS, Form 41, Schedule B-43, 1991–2001.