Rank	Countries/Territories	Count	Percent
1	United States	497	47.6%
2	China	167	16%
3	Germany	68	6.5%
4	Russia	50	4.8%
5	United Kingdom	30	2.9%
6	Finland	26	2.5%
7	Canada	20	1.9%
8	Ireland	17	1.6%
9	Australia	15	1.4%
10	Japan	14	1.3%
11	India	13	1.2%
12	France	13	1.2%
13	Netherlands	12	1.1%
14	Sweden	12	1.1%
15	Iran, Islamic Republic of	10	1%
16	Cyprus	10	1%
17	Belgium	8	0.8%
18	Italy	8	0.8%
19	Mexico	5	0.5%
20	Singapore	5	0.5%
21	Ukraine	5	0.5%
22	Spain	4	0.4%
23	Portugal	3	0.3%
24	South Africa	2	0.2%
25	Taiwan	2	0.2%
26	Korea, Republic of	2	0.2%
27	Malaysia	2	0.2%
28	Brazil	2	0.2%
29	Chile	2	0.2%
30	Denmark	2	0.2%
31	Egypt	2	0.2%
32	Israel	2	0.2%
33	Greece	2	0.2%
34	Hong Kong	2	0.2%
35	Turkey	2	0.2%
36	Viet Nam	2	0.2%
37	United Arab Emirates	1	0.1%
38	Estonia	1	0.1%
39	New Zealand	1	0.1%
40	Philippines	1	0.1%
41	Poland	1	0.1%
42	Thailand	1	0.1%
43	Switzerland	1	0.1%