Rank	Countries/Territories	Count	Percent
1	United States	431	38.6%
2	China	361	32.3%
3	Germany	73	6.5%
4	India	44	3.9%
5	Japan	25	2.2%
6	Russia	21	1.9%
7	Iran, Islamic Republic of	18	1.6%
8	United Kingdom	15	1.3%
9	Canada	14	1.3%
10	Czech Republic	12	1.1%
11	Singapore	11	1%
12	Netherlands	11	1%
13	Australia	9	0.8%
14	Hong Kong	8	0.7%
15	Korea, Republic of	7	0.6%
16	Cote D'ivoire	5	0.4%
17	Brazil	4	0.4%
18	Argentina	4	0.4%
19	Spain	4	0.4%
20	Romania	4	0.4%
21	Turkey	4	0.4%
22	France	3	0.3%
23	Poland	3	0.3%
24	Ireland	3	0.3%
25	Italy	2	0.2%
26	Greece	2	0.2%
27	Cyprus	2	0.2%
28	Colombia	2	0.2%
29	Portugal	2	0.2%
30	Norway	2	0.2%
31	Pakistan	2	0.2%
32	Kazakhstan	2	0.2%
33	Hungary	1	0.1%
34	Mexico	1	0.1%
35	Switzerland	1	0.1%
36	Taiwan	1	0.1%
37	Denmark	1	0.1%
38	Uzbekistan	1	0.1%