Rank	Countries/Territories	Count	Percent
1	United States	324	36.1%
2	China	200	22.3%
3	Germany	74	8.2%
4	Iran, Islamic Republic of	56	6.2%
5	Japan	53	5.9%
6	Russia	32	3.6%
7	France	23	2.6%
8	United Kingdom	15	1.7%
9	Netherlands	14	1.6%
10	Iraq	14	1.6%
11	India	11	1.2%
12	Singapore	10	1.1%
13	Ireland	9	1%
14	Canada	8	0.9%
15	Italy	7	0.8%
16	Turkey	7	0.8%
17	Cyprus	5	0.6%
18	Iceland	5	0.6%
19	New Zealand	4	0.4%
20	Spain	3	0.3%
21	Sweden	3	0.3%
22	Australia	3	0.3%
23	Estonia	3	0.3%
24	Egypt	2	0.2%
25	Hong Kong	2	0.2%
26	Hungary	2	0.2%
27	Israel	2	0.2%
28	Argentina	1	0.1%
29	Ethiopia	1	0.1%
30	Switzerland	1	0.1%
31	Thailand	1	0.1%
32	Poland	1	0.1%
33	Mongolia	1	0.1%