Rank	Countries/Territories	Count	Percent
1	United States	285	35.8%
2	China	181	22.7%
3	Germany	67	8.4%
4	Japan	53	6.7%
5	Iran, Islamic Republic of	50	6.3%
6	Russia	27	3.4%
7	France	18	2.3%
8	United Kingdom	14	1.8%
9	Netherlands	13	1.6%
10	Singapore	10	1.3%
11	India	10	1.3%
12	Ireland	9	1.1%
13	Italy	7	0.9%
14	Canada	6	0.8%
15	Iceland	5	0.6%
16	Turkey	5	0.6%
17	New Zealand	4	0.5%
18	Cyprus	4	0.5%
19	Australia	3	0.4%
20	Estonia	3	0.4%
21	Iraq	3	0.4%
22	Spain	3	0.4%
23	Sweden	3	0.4%
24	Israel	2	0.3%
25	Hong Kong	2	0.3%
26	Hungary	2	0.3%
27	Egypt	2	0.3%
28	Argentina	1	0.1%
29	Ethiopia	1	0.1%
30	Switzerland	1	0.1%
31	Poland	1	0.1%
32	Mongolia	1	0.1%