Rank	Countries/Territories	Count	Percent
1	United States	547	43.6%
2	China	292	23.2%
3	Germany	139	11.1%
4	Pakistan	60	4.8%
5	Canada	40	3.2%
6	France	35	2.8%
7	Netherlands	20	1.6%
8	Singapore	18	1.4%
9	Switzerland	14	1.1%
10	Japan	14	1.1%
11	India	12	1%
12	Ecuador	8	0.6%
13	Australia	7	0.6%
14	Cyprus	6	0.5%
15	Iran, Islamic Republic of	4	0.3%
16	Ireland	3	0.2%
17	Brazil	3	0.2%
18	Peru	3	0.2%
19	United Kingdom	3	0.2%
20	Yemen	2	0.2%
21	Mexico	2	0.2%
22	Turkey	2	0.2%
23	Bangladesh	2	0.2%
24	Belgium	2	0.2%
25	Czech Republic	2	0.2%
26	Colombia	2	0.2%
27	Hong Kong	2	0.2%
28	Egypt	1	0.1%
29	Ethiopia	1	0.1%
30	Denmark	1	0.1%
31	Argentina	1	0.1%
32	Thailand	1	0.1%
33	South Africa	1	0.1%
34	Spain	1	0.1%
35	Sweden	1	0.1%
36	Poland	1	0.1%
37	Romania	1	0.1%
38	Malaysia	1	0.1%
39	Norway	1	0.1%