15-7 Postal and Telecommunication Services over the Years
Year	Business Volume of Post and Telecommu- nications (10 000 yuan)			Number of Letters (10 000 pcs)	Subscribers of Local Telephone (10 000 subscribers)	Subscribers of Mobile Telephone (10 000 subscribers)	Length of Optical Cable Lines (km)	Populariza- tion Rate of Telephone (sets/100 persons)
Year		Business Volume of Post	Business Volume of Telecommu- nications	Number of Letters (10 000 pcs)	Subscribers of Local Telephone (10 000 subscribers)	Subscribers of Mobile Telephone (10 000 subscribers)	Length of Optical Cable Lines (km)	Populariza- tion Rate of Telephone (sets/100 persons)

1978	3853			7478	4.4			0.2
1979	3999			8167	4.8			0.2
1980	4055			8333	5.0			0.2
1981	6057			8309	5.4			0.2
1982	6293			8237	5.9			0.3
1983	6779			8646	6.4			0.3
1984	7517			9953	7.2			0.3
1985	8886			12114	8.1			0.4
1986	9503			13278	9.3			0.4
1987	10540			13933	10.7			0.5
1988	13539			16269	13.3			0.6
1989	17046			16545	16.8			0.7
1990	41556			15805	20.3			0.8
1991	51394			13151	25.0			1.0
1992	70063			12369	33.0			1.3
1993	106797			13831	49.9			2.0
1994	155114			15416	75.9			3.0
1995	212153			15333	107.8			4.2
1996	290041			14045	137.6		3793	5.3
1997	375102			11518	164.5		4493	6.3
1998	538459			10405	192.6		4702	7.4
1999	839500	85500	754000	9838	223.0	110.0	5086	12.7
2000	1163500	91500	1072000	9500	260.0	203.3	5461	17.6
2001	929592	91900	837692	10900	423.2	339.9	12785	24.0
2002	1163966	100300	1063666	16086	478.5	461.3	12722	36.5
2003	1546608	112900	1433708	17200	598.0	633.2	16044	45.5
2004	2133256	112800	2020456	7154	664.7	763.8	18668	46.4
2005	2858444	133100	2725344	6300	768.6	915.7	19197	63.0
2006	3382254	155600	3226654	6200	733.7	1137.8	19805	69.5
2007	4131841	165800	3966041	6600	745.5	1311.1	19834	74.9
2008	4559978	177600	4382378	6937	621.6	1441.2	16275	77.7
2009	5329996	211700	5118296	8088	581.3	1574.2	20161	78.9
2010	6539520	249600	6289920	9319	595.2	1805.4	21801	87.6
2011	2385540	183600	2201940	6579	579.3	2004.1	21843	94.1
2012	2627968	223000	2404968	5006	578.8	2257.0	22704	103.2
2013	2772764	258400	2514364	4373	579.0	2372.1	23431	107.4
2014	3281861	306600	2975261	3034	574.8	2612.3	23544	118.0
2015	3894776	361300	3533476	1923	572.3	2604.1	23877	115.5
2016	5752169	460300	5291869	1523	520.3	2654.8	23396	115.3
2017	5577487	577900	4999587	1717	497.6	2868.8	23444	123.2
2018	11504357	726398	10777959	1297	477.9	3001.1	33747	128.0
2019	18638585	945490	17693095	961	457.4	2897.6	26395	124.0
2020	22418799	1221927	21196872	787	417.8	2870.1	26743	122.2
2021	3526582	1085893	2440689	688	376.1	2966.5	26617	123.2
2022	3359438	1047080	2312358	492	383.7	3007.8	26769	126.6



Note: Since 2021， constant-price base period is changed from 2015 to 2020.