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Chapter 3 | Past performance of air services on regional air routesSee Appendix B, TableB.1, for detailed information on the number air routes servedby each airline for the past 22 years.Table 3.2 highlights the number of operators on regional air routes by six routedensity groups in five yearly intervals over the past 22 years. Overall, single operatorand multiple operators appeared across all route density groups.Table 3.2Number of airlines served on regional air routes, by route density,in 1985, 1990, 1995, 2000 and 2005Route density No. of routes by number of airlines No. of routes1985 1 airline routes 2 airline routes 3 airline routes 4 airline routes 5+ airline routes1–999 374 21 1 3961000–4999 142 20 1 1635000–9999 46 12 3 6110 000–49 999 46 24 10 5 1 8650 000–99 999 4 9 4 1 2 20100 000+ 6 6 1 131990 1 airline routes 2 airline routes 3 airline routes 4 airline routes 5+ airline routes No. of routes1–999 407 51 2 2 1 4631000–4999 81 23 10 3 3 1205000–9999 39 17 3 1 1 6110 000–49 999 42 19 9 7 1 7850 000–99 999 2 3 6 3 7 21100 000+ 1 2 7 101995 1 airline routes 2 airline routes 3 airline routes 4 airline routes 5+ airline routes No. of routes1–999 272 27 3 1 3031000–4 999 101 8 2 1115000–9999 38 13 3 5410 000–49 999 48 38 8 2 9650 000–99 999 3 17 3 2 25100 000+ 4 13 4 4 252000 1 airline routes 2 airline routes 3 airline routes 4 airline routes 5+ airline routes No. of routes1–999 165 18 6 1891000–4999 84 28 3 1 1165000–9999 30 12 3 4510 000–49 999 51 27 5 1 8450 000–99 999 2 12 8 2 24100 000+ 19 5 7 312005 1 airline routes 2 airline routes 3 airline routes 4 airline routes 5+ airline routes No. of routes1–999 155 7 2 1641000–4999 74 4 2 805000–9999 29 2 2 1 3410 000–49 999 53 11 3 1 6850 000–99 999 13 9 3 2 27100 000+ 8 14 6 11 3 42Source: BITRE time series estimates.73