Rank	Countries/Territories	Count	Percent
1	United States	444	36.7%
2	China	429	35.4%
3	Germany	113	9.3%
4	France	28	2.3%
5	Japan	23	1.9%
6	Iran, Islamic Republic of	20	1.7%
7	Russia	18	1.5%
8	Ukraine	17	1.4%
9	Netherlands	12	1%
10	Singapore	8	0.7%
11	Cyprus	8	0.7%
12	Brazil	8	0.7%
13	Korea, Republic of	7	0.6%
14	Hong Kong	7	0.6%
15	Viet Nam	7	0.6%
16	United Kingdom	6	0.5%
17	Mexico	6	0.5%
18	Australia	6	0.5%
19	Ecuador	5	0.4%
20	Jamaica	4	0.3%
21	Romania	4	0.3%
22	Switzerland	4	0.3%
23	Portugal	3	0.2%
24	Canada	3	0.2%
25	India	3	0.2%
26	Argentina	2	0.2%
27	Lebanon	2	0.2%
28	Egypt	2	0.2%
29	Malaysia	2	0.2%
30	Taiwan	2	0.2%
31	Turkey	2	0.2%
32	Tunisia	1	0.1%
33	Spain	1	0.1%
34	Nicaragua	1	0.1%
35	Poland	1	0.1%
36	Bangladesh	1	0.1%
37	Luxembourg	1	0.1%