Rank	Countries/Territories	Count	Percent
1	United States	520	46.8%
2	China	221	19.9%
3	Iran, Islamic Republic of	94	8.5%
4	Ireland	49	4.4%
5	Germany	34	3.1%
6	Japan	26	2.3%
7	India	24	2.2%
8	Netherlands	14	1.3%
9	France	14	1.3%
10	Australia	13	1.2%
11	Hong Kong	12	1.1%
12		11	1%
13	Canada	10	0.9%
14	Israel	10	0.9%
15	Taiwan	7	0.6%
16	Portugal	6	0.5%
17	Singapore	5	0.4%
18	Korea, Republic of	4	0.4%
19	Russia	4	0.4%
20	Italy	4	0.4%
21	Spain	3	0.3%
22	Indonesia	3	0.3%
23	Norway	2	0.2%
24	Pakistan	2	0.2%
25	Slovenia	2	0.2%
26	Finland	2	0.2%
27	Bulgaria	2	0.2%
28	Ukraine	2	0.2%
29	United Kingdom	2	0.2%
30	Cyprus	1	0.1%
31	Albania	1	0.1%
32	Argentina	1	0.1%
33	Austria	1	0.1%
34	Bangladesh	1	0.1%
35	Sweden	1	0.1%
36	Switzerland	1	0.1%
37	Turkey	1	0.1%
38	Romania	1	0.1%
39	Jordan	1	0.1%