Rank	Countries/Territories	Count	Percent
1	United States	403	36.9%
2	China	257	23.6%
3	Germany	88	8.1%
4	Canada	72	6.6%
5	Nigeria	40	3.7%
6	South Africa	34	3.1%
7	Thailand	27	2.5%
8	Netherlands	27	2.5%
9	Romania	15	1.4%
10	Japan	15	1.4%
11	France	12	1.1%
12	Singapore	10	0.9%
13	Korea, Republic of	9	0.8%
14	Australia	9	0.8%
15	Cyprus	9	0.8%
16	United Kingdom	7	0.6%
17	Italy	6	0.5%
18	Sweden	6	0.5%
19	India	5	0.5%
20	Iran, Islamic Republic of	5	0.5%
21	Bulgaria	3	0.3%
22	Russia	3	0.3%
23	Poland	3	0.3%
24	Lithuania	2	0.2%
25	Malaysia	2	0.2%
26	Mexico	2	0.2%
27	Moldova, Republic of	2	0.2%
28	Spain	2	0.2%
29	Switzerland	2	0.2%
30	Taiwan	2	0.2%
31	Argentina	2	0.2%
32	Hong Kong	2	0.2%
33	Egypt	1	0.1%
34	Ireland	1	0.1%
35	Latvia	1	0.1%
36	Jordan	1	0.1%
37	Tunisia	1	0.1%
38	Turkey	1	0.1%
39	Norway	1	0.1%
40	Pakistan	1	0.1%