Rank	Countries/Territories	Count	Percent
1	United States	403	39.4%
2	China	342	33.4%
3	Germany	88	8.6%
4	France	25	2.4%
5	Japan	19	1.9%
6	Iran, Islamic Republic of	19	1.9%
7	Russia	16	1.6%
8	Netherlands	12	1.2%
9	Cyprus	8	0.8%
10	Brazil	8	0.8%
11	Hong Kong	7	0.7%
12	Viet Nam	7	0.7%
13	Singapore	6	0.6%
14	Australia	6	0.6%
15	Ecuador	5	0.5%
16	Korea, Republic of	5	0.5%
17	Mexico	5	0.5%
18	United Kingdom	5	0.5%
19	Romania	4	0.4%
20	Switzerland	4	0.4%
21	Jamaica	4	0.4%
22	India	3	0.3%
23	Canada	3	0.3%
24	Portugal	3	0.3%
25	Taiwan	2	0.2%
26	Turkey	2	0.2%
27	Argentina	2	0.2%
28	Egypt	2	0.2%
29	Malaysia	2	0.2%
30	Luxembourg	1	0.1%
31	Ukraine	1	0.1%
32	Tunisia	1	0.1%
33	Spain	1	0.1%
34	Nicaragua	1	0.1%
35	Poland	1	0.1%