Rank	Countries/Territories	Count	Percent
1	United States	502	38.9%
2	China	453	35.1%
3	Germany	116	9%
4	France	33	2.6%
5	Netherlands	19	1.5%
6	Brazil	19	1.5%
7	Canada	19	1.5%
8	Japan	17	1.3%
9	Russia	16	1.2%
10	India	14	1.1%
11	Cyprus	13	1%
12	Korea, Republic of	11	0.9%
13	Australia	7	0.5%
14	South Africa	7	0.5%
15	Singapore	6	0.5%
16	Switzerland	6	0.5%
17	United Kingdom	5	0.4%
18	Czech Republic	3	0.2%
19	Malaysia	3	0.2%
20	Mauritania	3	0.2%
21	Iraq	2	0.2%
22	Hong Kong	2	0.2%
23	Bulgaria	2	0.2%
24	Taiwan	2	0.2%
25	Ukraine	2	0.2%
26	Poland	2	0.2%
27	Portugal	2	0.2%
28	Romania	2	0.2%
29	Spain	1	0.1%
30	Sweden	1	0.1%
31	Ireland	1	0.1%
32	Iran, Islamic Republic of	1	0.1%