Rank	Countries/Territories	Count	Percent
1	United States	255	43.2%
2	China	86	14.6%
3	Germany	63	10.7%
4	Japan	45	7.6%
5	Iran, Islamic Republic of	31	5.3%
6	France	11	1.9%
7	Taiwan	10	1.7%
8	Singapore	10	1.7%
9	Nigeria	7	1.2%
10	Indonesia	6	1%
11	Russia	6	1%
12	Korea, Republic of	6	1%
13	Malaysia	6	1%
14	Canada	6	1%
15	India	5	0.8%
16	Pakistan	5	0.8%
17	United Kingdom	4	0.7%
18	Netherlands	3	0.5%
19	Australia	3	0.5%
20	Cyprus	3	0.5%
21	Ethiopia	2	0.3%
22	Argentina	2	0.3%
23	Portugal	2	0.3%
24	Ireland	2	0.3%
25	Israel	2	0.3%
26	Sweden	2	0.3%
27	Switzerland	1	0.2%
28	Thailand	1	0.2%
29	Turkey	1	0.2%
30	Cambodia	1	0.2%
31	Greece	1	0.2%
32	Hong Kong	1	0.2%
33	Iraq	1	0.2%