Rank	Countries/Territories	Count	Percent
1	United States	507	37%
2	China	384	28%
3	Germany	109	8%
4	Canada	81	5.9%
5	Latvia	70	5.1%
6	Japan	32	2.3%
7		31	2.3%
8	Netherlands	28	2%
9	France	24	1.8%
10	Singapore	14	1%
11	Australia	8	0.6%
12	Cyprus	6	0.4%
13	India	6	0.4%
14	Iran, Islamic Republic of	5	0.4%
15	Hong Kong	5	0.4%
16	South Africa	5	0.4%
17	Spain	5	0.4%
18	Sweden	5	0.4%
19	Korea, Republic of	5	0.4%
20	Mongolia	5	0.4%
21	United Kingdom	4	0.3%
22	Greece	4	0.3%
23	Malaysia	3	0.2%
24	Russia	3	0.2%
25	Saudi Arabia	3	0.2%
26	Switzerland	2	0.1%
27	Turkey	2	0.1%
28	Italy	2	0.1%
29	Denmark	2	0.1%
30	Colombia	2	0.1%
31	Austria	2	0.1%
32	Belgium	1	0.1%
33	Argentina	1	0.1%
34	Ireland	1	0.1%
35	Ukraine	1	0.1%
36	Slovenia	1	0.1%
37	Taiwan	1	0.1%
38	Norway	1	0.1%