Rank	Countries/Territories	Count	Percent
1	United States	494	41%
2	China	218	18.1%
3	Iran, Islamic Republic of	105	8.7%
4	Germany	95	7.9%
5	Japan	78	6.5%
6	France	42	3.5%
7	Korea, Republic of	21	1.7%
8	Singapore	18	1.5%
9	Ukraine	14	1.2%
10	India	13	1.1%
11	Australia	11	0.9%
12	Netherlands	10	0.8%
13	United Kingdom	8	0.7%
14	Cyprus	8	0.7%
15	Taiwan	7	0.6%
16	Pakistan	6	0.5%
17	Switzerland	6	0.5%
18	Egypt	6	0.5%
19	Canada	5	0.4%
20	Malaysia	5	0.4%
21	Romania	5	0.4%
22	Turkey	5	0.4%
23	Mexico	4	0.3%
24	Mongolia	2	0.2%
25	Israel	2	0.2%
26	Argentina	2	0.2%
27	Brazil	2	0.2%
28	Denmark	2	0.2%
29	Russia	2	0.2%
30	Poland	2	0.2%
31	Spain	1	0.1%
32	Serbia	1	0.1%
33	Philippines	1	0.1%
34	Uruguay	1	0.1%
35	Italy	1	0.1%
36	Morocco	1	0.1%