Rank	Countries/Territories	Count	Percent
1	United States	627	49.1%
2	China	312	24.5%
3	Germany	93	7.3%
4	Netherlands	39	3.1%
5	Bulgaria	34	2.7%
6	Japan	22	1.7%
7	France	16	1.3%
8	Singapore	16	1.3%
9	Hong Kong	14	1.1%
10	Korea, Republic of	11	0.9%
11	Canada	11	0.9%
12	United Kingdom	10	0.8%
13	Taiwan	10	0.8%
14	Thailand	5	0.4%
15	Cyprus	5	0.4%
16	Australia	4	0.3%
17	Latvia	4	0.3%
18	Philippines	4	0.3%
19	Portugal	3	0.2%
20	Russia	3	0.2%
21	Nigeria	3	0.2%
22	Mauritius	3	0.2%
23	Spain	3	0.2%
24	Hungary	3	0.2%
25	Argentina	3	0.2%
26	Belgium	2	0.2%
27	India	2	0.2%
28	Iran, Islamic Republic of	2	0.2%
29	Turkey	2	0.2%
30	Ukraine	2	0.2%
31	Norway	2	0.2%
32	Mongolia	1	0.1%
33	Georgia	1	0.1%
34	South Africa	1	0.1%
35	Malaysia	1	0.1%
36	Bangladesh	1	0.1%
37	Ethiopia	1	0.1%