Rank	Countries/Territories	Count	Percent
1	United States	510	40.2%
2	China	345	27.2%
3	Germany	169	13.3%
4	Argentina	33	2.6%
5	Bangladesh	32	2.5%
6	Netherlands	22	1.7%
7	France	20	1.6%
8	Canada	19	1.5%
9	South Africa	19	1.5%
10	Japan	16	1.3%
11	Cyprus	11	0.9%
12	Switzerland	9	0.7%
13	Ukraine	8	0.6%
14	Russia	6	0.5%
15	Korea, Republic of	5	0.4%
16	Czech Republic	5	0.4%
17	Bulgaria	5	0.4%
18	Australia	5	0.4%
19	Benin	4	0.3%
20	Singapore	3	0.2%
21	Norway	3	0.2%
22	Spain	3	0.2%
23	Turkey	2	0.2%
24	Nigeria	2	0.2%
25	Latvia	2	0.2%
26	Egypt	2	0.2%
27	Georgia	2	0.2%
28	India	2	0.2%
29	Iran, Islamic Republic of	1	0.1%
30	Hong Kong	1	0.1%
31	Cote D'ivoire	1	0.1%
32	Lithuania	1	0.1%
33	Mauritius	1	0.1%
34	Togo	1	0.1%