排名	国家/地区	数量	占比
1	China	334	43.9%
2	United States	196	25.8%
3	Canada	61	8%
4	Germany	22	2.9%
5	Netherlands	17	2.2%
6	South Africa	17	2.2%
7	Singapore	17	2.2%
8	Japan	16	2.1%
9	Ireland	10	1.3%
10	Cyprus	9	1.2%
11	Australia	7	0.9%
12	France	7	0.9%
13	Hong Kong	6	0.8%
14	United Kingdom	4	0.5%
15	Ukraine	3	0.4%
16	Romania	3	0.4%
17	Russia	3	0.4%
18	Portugal	2	0.3%
19	Slovakia	2	0.3%
20	Turkey	2	0.3%
21	Argentina	2	0.3%
22	Denmark	2	0.3%
23	Iran, Islamic Republic of	2	0.3%
24	Bangladesh	2	0.3%
25	Belgium	2	0.3%
26	Brazil	2	0.3%
27	Czech Republic	1	0.1%
28	Chile	1	0.1%
29	Italy	1	0.1%
30	India	1	0.1%
31	Turkmenistan	1	0.1%
32	Spain	1	0.1%
33	Switzerland	1	0.1%
34	Taiwan	1	0.1%
35	Kazakhstan	1	0.1%
36	Kyrgyzstan	1	0.1%
37	Malaysia	1	0.1%