Rank	Countries/Territories	Count	Percent
1	China	268	30.7%
2	United States	256	29.3%
3	Germany	81	9.3%
4	Canada	52	5.9%
5	United Kingdom	28	3.2%
6	Korea, Republic of	27	3.1%
7	Japan	26	3%
8	Netherlands	26	3%
9	France	21	2.4%
10	Switzerland	13	1.5%
11	Trinidad and Tobago	10	1.1%
12	India	10	1.1%
13	Iran, Islamic Republic of	10	1.1%
14	Italy	5	0.6%
15	Turkey	5	0.6%
16	Romania	3	0.3%
17	Singapore	3	0.3%
18	Argentina	3	0.3%
19	Australia	3	0.3%
20	Austria	2	0.2%
21	Cyprus	2	0.2%
22	Israel	2	0.2%
23	Greece	2	0.2%
24	Pakistan	2	0.2%
25	Malaysia	2	0.2%
26	United Arab Emirates	2	0.2%
27	Taiwan	2	0.2%
28	Mauritius	1	0.1%
29	Jordan	1	0.1%
30	Portugal	1	0.1%
31	Spain	1	0.1%
32	Ireland	1	0.1%
33	Finland	1	0.1%
34	Colombia	1	0.1%
35	Belgium	1	0.1%