Rank	Countries/Territories	Count	Percent
1	United States	302	33.3%
2	China	299	33%
3	Germany	83	9.2%
4	Latvia	53	5.8%
5	Japan	21	2.3%
6	Netherlands	19	2.1%
7	Russia	17	1.9%
8	Canada	15	1.7%
9		14	1.5%
10	France	9	1%
11	Cyprus	8	0.9%
12	Korea, Republic of	7	0.8%
13	Hong Kong	7	0.8%
14	United Kingdom	7	0.8%
15	Nigeria	7	0.8%
16	Singapore	6	0.7%
17	Bulgaria	6	0.7%
18	Argentina	4	0.4%
19	Australia	2	0.2%
20	Belgium	2	0.2%
21	Brazil	2	0.2%
22	Greece	2	0.2%
23	Iran, Islamic Republic of	2	0.2%
24	Thailand	2	0.2%
25	Lithuania	2	0.2%
26	Mongolia	1	0.1%
27	Morocco	1	0.1%
28	Turkey	1	0.1%
29	Ukraine	1	0.1%
30	Peru	1	0.1%
31	Viet Nam	1	0.1%
32	Ireland	1	0.1%
33	India	1	0.1%