16-36  Number of Civil Aviation Routes and Civil Aircrafts
Item	1990	1995	2000	2005	2006
Number of Civil Aviation Routes   (line)	437	797	1165	1257	1336
International Routes	44	85	133	233	268
Domestic Routes	385	694	1032	1024	1068
Regional Routes	8	18	42	43	43
Length of Civil Aviation Routes      (km)	506762	1128961	1502887	1998501	2113505
International Routes	166350	348175	508405	855932	966168
Domestic Routes	329493	750794	994482	1142569	1147337
Regional Routes	10919	29992	55759	61056	62846
Number of Civil Airports              (unit)	94	139	139	135	142
Number of Civil Aircraft               (unit)	503	852	982	1386	1614
Aero transport			527	863	998
Air bus			462	785	921
Boeing 747	11	16	19	22	30
Boeing 737	21	115	186	358	418
Boeing 757	9	44	48	64	60
Boeing 767	6	17	16	27	29
MD-90			22	22	22
MD-82	25	39	27	15	12
Airbus A310	2	3	3	3
Airbus A320			60	115	141
BB-146	10	14	7	4
Puddle-jumper			65	78	77
General Aircraft			301	383	457
a) Before 1997, the number of civil airports and aircrafts  refers to those owned by enterprises directly under CAAC. Since 1997, it refers to those
owned by all enterprises of civil aviation. The same applies to  the  tables following.
b) Before 1997, regional routes include the routes to and from Hong Kong, Macao, and are taken as parallel items to  the items of domestic routes
and international routes. Since 1997, regional routes to and from Hong Kong are taken as domestic routes, and adjustment are also made on the
length of aviation routes and traffic volume accordingly. Since 1999, regional routes are taken as a part of domestic routes, and include the aviation
routes to and from Hong Kong, Macao. The same applies to  the  tables following.
c) Number of civil aircrafts include the teaching aircrafts and check aircrafts.