Rank	Countries/Territories	Count	Percent
1	United States	315	31.6%
2	China	289	29%
3	Germany	115	11.5%
4	India	70	7%
5	Iran, Islamic Republic of	50	5%
6	Canada	26	2.6%
7	France	21	2.1%
8	Netherlands	13	1.3%
9	Japan	11	1.1%
10	Cyprus	9	0.9%
11	Indonesia	7	0.7%
12	Hungary	6	0.6%
13	Argentina	5	0.5%
14	Mexico	5	0.5%
15	Singapore	4	0.4%
16	Australia	4	0.4%
17	United Kingdom	4	0.4%
18	Brazil	3	0.3%
19	Ireland	3	0.3%
20	Italy	3	0.3%
21	Russia	3	0.3%
22	Ukraine	3	0.3%
23	Korea, Republic of	3	0.3%
24	New Zealand	2	0.2%
25	Romania	2	0.2%
26	Saudi Arabia	2	0.2%
27	Spain	2	0.2%
28	Sweden	2	0.2%
29	Turkey	2	0.2%
30	Greece	2	0.2%
31	Hong Kong	2	0.2%
32	Bulgaria	2	0.2%
33	Belgium	2	0.2%
34	Egypt	2	0.2%
35	Czech Republic	1	0.1%
36	Norway	1	0.1%
37	Oman	1	0.1%
38	Mongolia	1	0.1%