Rank	Countries/Territories	Count	Percent
1	United States	545	33.6%
2	China	382	23.6%
3	Bulgaria	263	16.2%
4	Germany	156	9.6%
5	Nigeria	50	3.1%
6	Netherlands	46	2.8%
7	France	41	2.5%
8	India	22	1.4%
9	Moldova, Republic of	16	1%
10	Singapore	11	0.7%
11	Switzerland	10	0.6%
12	Thailand	8	0.5%
13	Japan	8	0.5%
14	Canada	6	0.4%
15	Australia	5	0.3%
16	Cote D'ivoire	5	0.3%
17	Cyprus	5	0.3%
18	Latvia	5	0.3%
19	Taiwan	4	0.2%
20	Viet Nam	4	0.2%
21	United Kingdom	4	0.2%
22	Portugal	3	0.2%
23	Spain	2	0.1%
24	Italy	2	0.1%
25	Korea, Republic of	2	0.1%
26	Denmark	2	0.1%
27	Brazil	2	0.1%
28	Burkina Faso	2	0.1%
29	Greece	2	0.1%
30	Poland	2	0.1%
31	Hong Kong	1	0.1%
32	Ireland	1	0.1%
33	Argentina	1	0.1%
34	Georgia	1	0.1%
35	Norway	1	0.1%
36	Russia	1	0.1%
37	Turkey	1	0.1%