排名	国家/地区	数量	占比
1	China	409	53%
2	United States	272	35.2%
3	Canada	17	2.2%
4	Japan	10	1.3%
5	Germany	9	1.2%
6	Netherlands	8	1%
7	Hong Kong	7	0.9%
8	India	7	0.9%
9	Ireland	6	0.8%
10	Australia	5	0.6%
11	Iran, Islamic Republic of	3	0.4%
12	France	3	0.4%
13	Malaysia	3	0.4%
14	Taiwan	3	0.4%
15	Russia	2	0.3%
16	Singapore	2	0.3%
17	South Africa	2	0.3%
18	Italy	1	0.1%
19	Brazil	1	0.1%
20	Argentina	1	0.1%
21	United Kingdom	1	0.1%