15-37 Number of Civil Aviation Routes and Civil Aircraft
Item	1985	1990	1995	1998	1999
Number of Civil Aviation Routes	268	437	797	1122	1115
International Routes	27	44	85	131	128
Domestic Routes	233	385	694	983	987
Regional Routes	8	8	18	8	22
Length of Civil Aviation Routes (km)	277217	506762	1128961	1505811	1522221
International Routes	105959	166350	348175	504429	523300
Domestic Routes	160323	329493	750794	994130	998921
Regional Routes	10935	10919	29992	7252	30812
Number of Civil Airports	82	94	139	143	142
Airports Serving Boeing 737 or Larger	10	47	81	106	120
Aircraft
Number of Civil Aircraft	404	421	720	801	795
Aerotransport				510	523
Air bus				443	445
Boeing 747	6	11	16	20	17
Boeing 737	15	21	115	161	174
Boeing 757		9	44	48	48
Boeing 767	2	6	17	15	16
MD-90					20
MD-82	5	25	39	39	29
Airbus A310	2	2	3	3	3
Airbus A320					51
Tupolov 154	2	20	33	25	13
BB-146		10	14	14	14
Puddle-jumper				80	65
Yun 7	13	45	67	46	33
General Aircraft				278	285
a)The number of civil airports and aircraft in 1985 and 1990 refers to those owned by enterprises directly under CAAC. Since then, it refers to those owned by all enterprises of civil aviation. The same as in the following table. b)Before 1997, regional routes includes the routes to and from Hong Kong, Macao, and are taken as the parataxis item as the item 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 as in the following table.