Rank	Countries/Territories	Count	Percent
1	United States	467	38.9%
2	China	331	27.6%
3	Japan	132	11%
4	Germany	63	5.2%
5	Netherlands	40	3.3%
6	Canada	23	1.9%
7	Bulgaria	19	1.6%
8	United Kingdom	15	1.2%
9	Nigeria	13	1.1%
10	Latvia	13	1.1%
11	France	12	1%
12	Cyprus	7	0.6%
13	Bangladesh	6	0.5%
14	Australia	5	0.4%
15	Ghana	5	0.4%
16	Thailand	5	0.4%
17	Singapore	5	0.4%
18	South Africa	5	0.4%
19	Turkey	4	0.3%
20	Ukraine	4	0.3%
21	India	4	0.3%
22	Taiwan	3	0.2%
23	Spain	2	0.2%
24	Sweden	2	0.2%
25	Lithuania	2	0.2%
26	Mauritius	2	0.2%
27	Argentina	2	0.2%
28	Austria	1	0.1%
29	Brazil	1	0.1%
30	Iran, Islamic Republic of	1	0.1%
31	Korea, Republic of	1	0.1%
32	Hong Kong	1	0.1%
33	Moldova, Republic of	1	0.1%
34	Malaysia	1	0.1%
35	Philippines	1	0.1%
36	Russia	1	0.1%
37	Viet Nam	1	0.1%