Rank	Countries/Territories	Count	Percent
1	United States	193	37.7%
2	China	110	21.5%
3	Germany	35	6.8%
4	Korea, Republic of	22	4.3%
5	Japan	16	3.1%
6	Romania	16	3.1%
7	Netherlands	13	2.5%
8	Bulgaria	13	2.5%
9	Turkey	9	1.8%
10	Hong Kong	8	1.6%
11	Australia	8	1.6%
12	Ireland	7	1.4%
13	France	6	1.2%
14	Russia	6	1.2%
15	Singapore	6	1.2%
16	Poland	5	1%
17	United Kingdom	5	1%
18	Canada	5	1%
19	South Africa	4	0.8%
20	Iran, Islamic Republic of	3	0.6%
21	Morocco	3	0.6%
22	Lithuania	2	0.4%
23	Hungary	2	0.4%
24	Indonesia	2	0.4%
25	Nigeria	2	0.4%
26	Philippines	2	0.4%
27	Viet Nam	2	0.4%
28	Ukraine	1	0.2%
29	New Zealand	1	0.2%
30	Taiwan	1	0.2%
31	Thailand	1	0.2%
32	Georgia	1	0.2%
33	Mauritius	1	0.2%
34	Isle of Man	1	0.2%