Rank	Countries/Territories	Count	Percent
1	United States	641	43.4%
2	China	332	22.5%
3	Germany	156	10.6%
4	Brazil	57	3.9%
5	India	44	3%
6	Canada	40	2.7%
7	Japan	27	1.8%
8	Italy	24	1.6%
9	Russia	19	1.3%
10	Netherlands	14	0.9%
11	Latvia	12	0.8%
12	Korea, Republic of	11	0.7%
13	Switzerland	8	0.5%
14	France	8	0.5%
15	United Kingdom	7	0.5%
16	Australia	6	0.4%
17	Cyprus	5	0.3%
18	Iran, Islamic Republic of	5	0.3%
19	Ireland	5	0.3%
20	Hungary	4	0.3%
21	Cote D'ivoire	4	0.3%
22	Singapore	4	0.3%
23	Thailand	4	0.3%
24	Turkey	4	0.3%
25	Ukraine	3	0.2%
26	Mexico	3	0.2%
27	Greece	3	0.2%
28	Hong Kong	3	0.2%
29	Norway	2	0.1%
30	Malaysia	2	0.1%
31	South Africa	2	0.1%
32	Taiwan	2	0.1%
33	Serbia	2	0.1%
34	Poland	2	0.1%
35	Romania	2	0.1%
36	Viet Nam	2	0.1%
37	Portugal	1	0.1%
38	Pakistan	1	0.1%
39	Argentina	1	0.1%
40	Iraq	1	0.1%
41	Denmark	1	0.1%
42	Egypt	1	0.1%
43	Belgium	1	0.1%