Rank	Countries/Territories	Count	Percent
1	China	311	31.8%
2	United States	298	30.5%
3	Germany	81	8.3%
4	Canada	52	5.3%
5	United Kingdom	29	3%
6	Korea, Republic of	27	2.8%
7	Japan	26	2.7%
8	Netherlands	26	2.7%
9	France	21	2.1%
10	India	13	1.3%
11	Switzerland	13	1.3%
12	Trinidad and Tobago	10	1%
13	Iran, Islamic Republic of	10	1%
14	Australia	9	0.9%
15	Turkey	5	0.5%
16	Italy	5	0.5%
17	Romania	5	0.5%
18	Singapore	5	0.5%
19	Malaysia	3	0.3%
20	Argentina	3	0.3%
21	Cyprus	3	0.3%
22	Greece	2	0.2%
23	Israel	2	0.2%
24	Austria	2	0.2%
25	Pakistan	2	0.2%
26	Taiwan	2	0.2%
27	United Arab Emirates	2	0.2%
28	Spain	1	0.1%
29	Portugal	1	0.1%
30	Nigeria	1	0.1%
31	Mauritius	1	0.1%
32	Jordan	1	0.1%
33	Bangladesh	1	0.1%
34	Belgium	1	0.1%
35	Colombia	1	0.1%
36	Ireland	1	0.1%
37	Hong Kong	1	0.1%
38	Finland	1	0.1%