Rank	Countries/Territories	Count	Percent
1	United States	519	43.4%
2	China	293	24.5%
3	Germany	169	14.1%
4	India	29	2.4%
5	Ukraine	16	1.3%
6	France	15	1.3%
7	Russia	12	1%
8	Singapore	12	1%
9	Cyprus	12	1%
10	Egypt	12	1%
11	Canada	11	0.9%
12	Australia	10	0.8%
13	Netherlands	10	0.8%
14	United Kingdom	9	0.8%
15	Japan	8	0.7%
16	Argentina	7	0.6%
17	Iran, Islamic Republic of	6	0.5%
18	Korea, Republic of	6	0.5%
19	Ireland	4	0.3%
20	Jordan	4	0.3%
21	Poland	4	0.3%
22	Spain	4	0.3%
23	Taiwan	4	0.3%
24	Israel	2	0.2%
25	Lithuania	2	0.2%
26	Macao	2	0.2%
27	Malaysia	2	0.2%
28	Brazil	2	0.2%
29	Bulgaria	2	0.2%
30	Greece	1	0.1%
31	Hong Kong	1	0.1%
32	Mauritius	1	0.1%
33	Mexico	1	0.1%
34	Viet Nam	1	0.1%
35	Serbia	1	0.1%
36	New Zealand	1	0.1%
37	Norway	1	0.1%