Rank	Countries/Territories	Count	Percent
1	United States	599	45.1%
2	China	388	29.2%
3	Germany	117	8.8%
4	Russia	78	5.9%
5	France	23	1.7%
6	Brazil	16	1.2%
7	Japan	16	1.2%
8	Netherlands	13	1%
9	Korea, Republic of	11	0.8%
10	United Kingdom	10	0.8%
11	Turkey	9	0.7%
12	Iran, Islamic Republic of	5	0.4%
13	Canada	4	0.3%
14	Cyprus	4	0.3%
15	Finland	4	0.3%
16	Argentina	3	0.2%
17	Australia	3	0.2%
18	Hong Kong	3	0.2%
19	Italy	3	0.2%
20	Singapore	2	0.2%
21	Slovakia	2	0.2%
22	Ireland	2	0.2%
23	Mexico	2	0.2%
24	Nigeria	2	0.2%
25	Peru	2	0.2%
26	Bulgaria	2	0.2%
27	India	1	0.1%
28	South Africa	1	0.1%
29	Spain	1	0.1%
30	Ukraine	1	0.1%