Rank	Countries/Territories	Count	Percent
1	United States	464	39%
2	China	441	37.1%
3	Germany	97	8.2%
4	Russia	26	2.2%
5	India	20	1.7%
6	France	18	1.5%
7	Japan	17	1.4%
8	Netherlands	15	1.3%
9	Singapore	11	0.9%
10	Ireland	6	0.5%
11	Korea, Republic of	6	0.5%
12	Turkey	5	0.4%
13	Yemen	4	0.3%
14	Thailand	4	0.3%
15	Pakistan	4	0.3%
16	Canada	4	0.3%
17	Croatia	4	0.3%
18	Australia	4	0.3%
19	Bangladesh	4	0.3%
20	Cyprus	3	0.3%
21	Cameroon	3	0.3%
22	Iran, Islamic Republic of	3	0.3%
23	Romania	3	0.3%
24	South Africa	3	0.3%
25	Taiwan	3	0.3%
26	United Kingdom	2	0.2%
27	Peru	2	0.2%
28	Malaysia	2	0.2%
29	Mexico	2	0.2%
30	Brazil	2	0.2%
31	Bulgaria	1	0.1%
32	Bosnia and Herzegovina	1	0.1%
33	Argentina	1	0.1%
34	Iraq	1	0.1%
35	Lithuania	1	0.1%
36	Hong Kong	1	0.1%
37	Serbia	1	0.1%