Rank	Countries/Territories	Count	Percent
1	United States	408	37.9%
2	China	178	16.5%
3	Bulgaria	141	13.1%
4	Germany	49	4.6%
5	Japan	45	4.2%
6	Netherlands	35	3.3%
7	France	29	2.7%
8	Singapore	27	2.5%
9	Russia	15	1.4%
10	India	14	1.3%
11	Canada	12	1.1%
12	United Kingdom	11	1%
13	Australia	9	0.8%
14	Thailand	9	0.8%
15	South Africa	9	0.8%
16	Morocco	8	0.7%
17	Korea, Republic of	8	0.7%
18	Nigeria	7	0.7%
19	Philippines	7	0.7%
20	Poland	6	0.6%
21	Lithuania	6	0.6%
22	Mauritius	6	0.6%
23	Latvia	5	0.5%
24	Cyprus	4	0.4%
25	Spain	4	0.4%
26	Portugal	3	0.3%
27	Hong Kong	3	0.3%
28	Iran, Islamic Republic of	2	0.2%
29	Romania	2	0.2%
30	Italy	2	0.2%
31	Turkey	2	0.2%
32	Viet Nam	1	0.1%
33	Moldova, Republic of	1	0.1%
34	Switzerland	1	0.1%
35	Togo	1	0.1%
36	Saudi Arabia	1	0.1%
37	Isle of Man	1	0.1%
38	Jordan	1	0.1%
39	Kenya	1	0.1%
40	Georgia	1	0.1%
41	Bangladesh	1	0.1%