Rank	Countries/Territories	Count	Percent
1	United States	373	61.6%
2	China	112	18.5%
3	Germany	16	2.6%
4	Bulgaria	14	2.3%
5	Netherlands	11	1.8%
6	Japan	8	1.3%
7	Canada	7	1.2%
8	United Kingdom	7	1.2%
9	Singapore	6	1%
10	Switzerland	6	1%
11	Morocco	6	1%
12	Hong Kong	5	0.8%
13	France	4	0.7%
14	Ghana	4	0.7%
15	Bangladesh	3	0.5%
16	Hungary	3	0.5%
17	Philippines	3	0.5%
18	Nigeria	2	0.3%
19	South Africa	2	0.3%
20	Spain	2	0.3%
21	Latvia	2	0.3%
22	Australia	2	0.3%
23	Greece	2	0.3%
24	Czech Republic	1	0.2%
25	Lithuania	1	0.2%
26	Mauritius	1	0.2%
27	Ireland	1	0.2%
28	Thailand	1	0.2%
29	Portugal	1	0.2%