Rank	Countries/Territories	Count	Percent
1	United States	347	37.2%
2	China	267	28.6%
3	Germany	113	12.1%
4	Poland	28	3%
5	France	26	2.8%
6	India	19	2%
7	Netherlands	14	1.5%
8	Latvia	13	1.4%
9	Ireland	12	1.3%
10	Canada	12	1.3%
11	Japan	11	1.2%
12	Greece	10	1.1%
13	Korea, Republic of	8	0.9%
14	United Kingdom	8	0.9%
15	Singapore	7	0.8%
16	Iran, Islamic Republic of	6	0.6%
17	Ukraine	4	0.4%
18	Sweden	3	0.3%
19	Taiwan	3	0.3%
20	Norway	3	0.3%
21	Australia	3	0.3%
22	Cyprus	3	0.3%
23	Israel	2	0.2%
24	Lithuania	2	0.2%
25	Malaysia	2	0.2%
26	Romania	2	0.2%
27	Russia	2	0.2%
28	Philippines	1	0.1%
29	Thailand	1	0.1%
30	Mongolia	1	0.1%