Rank	Countries/Territories	Count	Percent
1	United States	231	41.1%
2	China	125	22.2%
3	Germany	34	6%
4	Netherlands	30	5.3%
5	Japan	29	5.2%
6	India	13	2.3%
7	Switzerland	13	2.3%
8	Singapore	10	1.8%
9	France	9	1.6%
10	Ireland	8	1.4%
11	United Kingdom	8	1.4%
12	Iran, Islamic Republic of	6	1.1%
13	Cyprus	6	1.1%
14	Taiwan	5	0.9%
15	Yemen	5	0.9%
16	Spain	4	0.7%
17	Romania	3	0.5%
18	Egypt	3	0.5%
19	Canada	3	0.5%
20	Indonesia	3	0.5%
21	Brazil	2	0.4%
22	Australia	2	0.4%
23	South Africa	2	0.4%
24	Thailand	2	0.4%
25	Russia	1	0.2%
26	Belgium	1	0.2%
27	Ethiopia	1	0.2%
28	Colombia	1	0.2%
29	Israel	1	0.2%
30	Lithuania	1	0.2%