Rank	Countries/Territories	Count	Percent
1	United States	332	34.5%
2	China	262	27.2%
3	Germany	87	9%
4	India	47	4.9%
5	Japan	24	2.5%
6	Spain	20	2.1%
7	Netherlands	19	2%
8	Canada	18	1.9%
9	United Kingdom	18	1.9%
10	Bulgaria	13	1.4%
11	Korea, Republic of	13	1.4%
12	Singapore	11	1.1%
13	Russia	9	0.9%
14	Hong Kong	9	0.9%
15	Ireland	8	0.8%
16	Mexico	7	0.7%
17	Sweden	7	0.7%
18	Cyprus	7	0.7%
19	Czech Republic	6	0.6%
20	Turkey	6	0.6%
21	Argentina	3	0.3%
22	Australia	3	0.3%
23	Cote D'ivoire	3	0.3%
24	Switzerland	3	0.3%
25	Thailand	3	0.3%
26	Lithuania	3	0.3%
27	Portugal	2	0.2%
28	Pakistan	2	0.2%
29	Colombia	2	0.2%
30	Brazil	2	0.2%
31	Denmark	2	0.2%
32	Indonesia	2	0.2%
33	Iran, Islamic Republic of	2	0.2%
34	France	1	0.1%
35	Belgium	1	0.1%
36	Poland	1	0.1%
37	Montenegro	1	0.1%
38	Saudi Arabia	1	0.1%
39	Taiwan	1	0.1%
40	Ukraine	1	0.1%