Rank	Countries/Territories	Count	Percent
1	United States	440	38.7%
2	China	389	34.2%
3	Germany	71	6.2%
4	Bulgaria	69	6.1%
5	Netherlands	27	2.4%
6	Japan	15	1.3%
7	India	14	1.2%
8	Mauritius	12	1.1%
9	Latvia	10	0.9%
10	Canada	10	0.9%
11	France	8	0.7%
12	Korea, Republic of	7	0.6%
13	Singapore	7	0.6%
14	Nigeria	6	0.5%
15	Turkey	6	0.5%
16	Sweden	5	0.4%
17	Taiwan	5	0.4%
18	Thailand	5	0.4%
19	United Kingdom	4	0.4%
20	Australia	4	0.4%
21	Cyprus	4	0.4%
22	Viet Nam	3	0.3%
23	Spain	3	0.3%
24	Pakistan	2	0.2%
25	Iran, Islamic Republic of	2	0.2%
26	Lithuania	2	0.2%
27	Moldova, Republic of	1	0.1%
28	Hong Kong	1	0.1%
29	Philippines	1	0.1%
30	Senegal	1	0.1%
31	Norway	1	0.1%
32	South Africa	1	0.1%