16-29  Number of Civil Aviation Routes and Civil Aircrafts|16-29NumberofCivilAviationRoutesandCivilAircrafts|Item|1990|2000|2005|2010|2014|2015||NumberofRegularCivilAviationRoutes(line)|437|1165|1257|1880|3142|3326|InternationalRoutes|44|133|233|302|490|660|DomesticRoutes|385|1032|1024|1578|2652|2666|RoutesofHongKongandMacao|8|42|43|85|114|109|LengthofRegularCivilAviationRoutes(km)|506762|1502887|1998501|2765147|4637214|5317230|InternationalRoutes|166350|508405|855932|1070167|1767210|2394434|DomesticRoutes|329493|994482|1142569|1694980|2870004|2922796|RoutesofHongKongandMacao|10919|55759|61056|121437|179320|171621|NumberofRegularCivilAirportsOpened(unit)|94|139|135|175|200|206|NumberofCivilAircraft(unit)|503|982|1386|2405|4168|4554|AeroTransport|204|527|863|1597|2370|2650|Airbus|462|785|1453|2218|2499|Boeing747|11|19|22|40|24|26|Boeing737|21|186|358|650|958|1104|Boeing757|9|48|64|48|41|35|Boeing767|6|16|27|18|9|9|AirbusA320|60|115|281|579|645|Puddle-jumper|65|78|144|152|151|GeneralAircraft|217|301|383|606|1798|1904||a)Before1992,thenumberofcivilairportsandaircraftsreferstothoseownedbyenterprisesdirectlyunderCAAC.Since1992,itreferstothose|ownedbyallenterprisesofcivilaviation.Thesameappliestothetablesfollowing.|b)Before1997,regionalroutesincludetheroutestoandfromHongKong,Macao,andaretakenasparallelitemstotheitemsofdomesticroutes|andinternationalroutes.Since1997,regionalroutestoandfromHongKongaretakenasdomesticroutes,andadjustmentarealsomadeonthe|lengthofaviationroutesandtrafficvolumeaccordingly.Since1999,regionalroutesaretakenasapartofdomesticroutes,andincludetheaviation|routestoandfromHongKong,Macao.Thesameappliestothetablesfollowing.|c)Since2011,civilaviationrouteschangetoregularcivilaviationroutes,civilairportsopenedchangetoregularcivilairportsopened.