Rank	Countries/Territories	Count	Percent
1	United States	500	42.1%
2	China	287	24.2%
3	Germany	63	5.3%
4	Japan	50	4.2%
5	Brazil	41	3.5%
6	Russia	32	2.7%
7	Latvia	27	2.3%
8	Canada	27	2.3%
9	Korea, Republic of	19	1.6%
10	India	15	1.3%
11	Ireland	14	1.2%
12	Netherlands	14	1.2%
13	Iran, Islamic Republic of	8	0.7%
14	Turkey	7	0.6%
15	Singapore	6	0.5%
16	Spain	6	0.5%
17	Morocco	6	0.5%
18	Italy	6	0.5%
19	Australia	6	0.5%
20	Cyprus	6	0.5%
21	Denmark	5	0.4%
22	France	5	0.4%
23	Poland	5	0.4%
24	United Kingdom	5	0.4%
25	Taiwan	4	0.3%
26	Hong Kong	4	0.3%
27	Norway	3	0.3%
28	Ukraine	2	0.2%
29	Saudi Arabia	2	0.2%
30	Hungary	2	0.2%
31	Belgium	2	0.2%
32	Israel	2	0.2%
33	Colombia	1	0.1%
34	Bangladesh	1	0.1%
35	Serbia	1	0.1%
36	Sri Lanka	1	0.1%
37	Sweden	1	0.1%
38	Panama	1	0.1%
39	Lithuania	1	0.1%