Rank	Countries/Territories	Count	Percent
1	China	222	31.5%
2	United States	193	27.4%
3	Germany	73	10.4%
4	Canada	28	4%
5	Korea, Republic of	27	3.8%
6	Netherlands	25	3.6%
7	Japan	25	3.6%
8	United Kingdom	24	3.4%
9	Switzerland	13	1.8%
10	Trinidad and Tobago	10	1.4%
11	Iran, Islamic Republic of	10	1.4%
12	India	8	1.1%
13	France	7	1%
14	Turkey	5	0.7%
15	Italy	4	0.6%
16	Argentina	3	0.4%
17	Romania	3	0.4%
18	Singapore	2	0.3%
19	Taiwan	2	0.3%
20	Pakistan	2	0.3%
21	Malaysia	2	0.3%
22	United Arab Emirates	2	0.3%
23	Australia	2	0.3%
24	Austria	2	0.3%
25	Israel	2	0.3%
26	Jordan	1	0.1%
27	Ireland	1	0.1%
28	Belgium	1	0.1%
29	Cyprus	1	0.1%
30	Finland	1	0.1%
31	Mauritius	1	0.1%
32	Portugal	1	0.1%
33	Spain	1	0.1%