Rank	Countries/Territories	Count	Percent
1	United States	327	33.9%
2	China	316	32.7%
3	Germany	105	10.9%
4	Canada	54	5.6%
5	Japan	31	3.2%
6	India	28	2.9%
7	Iran, Islamic Republic of	13	1.3%
8	Korea, Republic of	13	1.3%
9	Russia	8	0.8%
10	United Kingdom	8	0.8%
11	Netherlands	7	0.7%
12	Cyprus	7	0.7%
13	Belgium	5	0.5%
14	Singapore	4	0.4%
15	Israel	3	0.3%
16	Switzerland	3	0.3%
17	Thailand	3	0.3%
18	Chile	3	0.3%
19	Denmark	3	0.3%
20	France	2	0.2%
21	Argentina	2	0.2%
22	Malaysia	2	0.2%
23	Hong Kong	2	0.2%
24	Taiwan	2	0.2%
25	Ukraine	2	0.2%
26	Virgin Islands, British	2	0.2%
27	Spain	2	0.2%
28	Sweden	1	0.1%
29	Nigeria	1	0.1%
30	Pakistan	1	0.1%
31	Romania	1	0.1%
32	Turkey	1	0.1%
33	Iraq	1	0.1%
34	Mexico	1	0.1%
35	Georgia	1	0.1%