Rank	Countries/Territories	Count	Percent
1	United States	227	24.6%
2	China	176	19.1%
3	Bulgaria	85	9.2%
4	Netherlands	84	9.1%
5	Belgium	61	6.6%
6	Thailand	48	5.2%
7	Japan	30	3.3%
8	Germany	28	3%
9	South Africa	24	2.6%
10	France	19	2.1%
11	Iran, Islamic Republic of	16	1.7%
12	Singapore	15	1.6%
13	United Kingdom	12	1.3%
14	Nigeria	9	1%
15	Latvia	8	0.9%
16	Mauritius	8	0.9%
17	Ireland	7	0.8%
18	Canada	7	0.8%
19	Portugal	6	0.7%
20	Turkey	5	0.5%
21	Sweden	5	0.5%
22	Taiwan	4	0.4%
23	Poland	4	0.4%
24	India	4	0.4%
25	Korea, Republic of	4	0.4%
26	Viet Nam	4	0.4%
27	Russia	3	0.3%
28	Spain	2	0.2%
29	Romania	2	0.2%
30	Norway	2	0.2%
31	Israel	2	0.2%
32	Australia	2	0.2%
33	Austria	1	0.1%
34	Bangladesh	1	0.1%
35	Bolivia, Plurinational State of	1	0.1%
36	Georgia	1	0.1%
37	Ghana	1	0.1%
38	Hong Kong	1	0.1%
39	Kenya	1	0.1%
40	Lithuania	1	0.1%
41	Saudi Arabia	1	0.1%