Table 2. Total and mean citation of articles from Mainland China, Taiwan, and Hong Kong.

Year	Total citation			Mean citation
	Mainland China	Taiwan	Hong Kong	Mainland China	Taiwan	Hong Kong
2005	28	950	607	14.00	13.97	17.34
2006	28	732	436	28.00	12.84	11.78
2007	174	1040	609	17.40	11.43	13.24
2008	151	1417	577	8.88	10.50	12.02
2009	256	1159	505	7.53	6.90	11.48
2010	201	1261	490	4.47	6.03	7.54
2011	195	995	227	3.75	4.74	4.73
2012	274	481	185	3.97	2.72	3.08
2013	127	255	133	1.43	1.30	2.15
2014	59	102	16	0.50	0.52	0.32
Total	1493	8392	3785	3.41	5.57	7.65