排名	国家/地区	数量	占比
1	China	252	65.6%
2	United States	50	13%
3		16	4.2%
4	Japan	8	2.1%
5	Germany	7	1.8%
6	Canada	7	1.8%
7	Malaysia	6	1.6%
8	Singapore	5	1.3%
9	Netherlands	4	1%
10	Ireland	4	1%
11	Sweden	3	0.8%
12	Ukraine	3	0.8%
13	Russia	3	0.8%
14	Iran, Islamic Republic of	2	0.5%
15	France	2	0.5%
16	Australia	2	0.5%
17	Azerbaijan	2	0.5%
18	United Kingdom	2	0.5%
19	Taiwan	2	0.5%
20	Bulgaria	1	0.3%
21	Argentina	1	0.3%
22	Cote D'ivoire	1	0.3%
23	South Africa	1	0.3%