排名	国家/地区	数量	占比
1	China	644	67.2%
2	United States	125	13%
3	Canada	62	6.5%
4	India	48	5%
5	France	12	1.3%
6	Taiwan	10	1%
7	Germany	6	0.6%
8	Morocco	6	0.6%
9	Netherlands	6	0.6%
10	Ireland	6	0.6%
11	Japan	6	0.6%
12	Cote D'ivoire	6	0.6%
13	Poland	4	0.4%
14	Hong Kong	4	0.4%
15	Romania	3	0.3%
16	Singapore	3	0.3%
17	Australia	3	0.3%
18	Korea, Republic of	2	0.2%
19	Switzerland	1	0.1%
20	United Kingdom	1	0.1%