Rank	Countries/Territories	Count	Percent
1	United States	640	38.9%
2	China	590	35.9%
3	Germany	149	9.1%
4	India	24	1.5%
5	Singapore	20	1.2%
6	Netherlands	18	1.1%
7	France	17	1%
8	Bulgaria	15	0.9%
9	Japan	15	0.9%
10	Mexico	13	0.8%
11	Australia	13	0.8%
12	Cyprus	11	0.7%
13	Canada	10	0.6%
14	Philippines	9	0.5%
15	Norway	7	0.4%
16	Latvia	7	0.4%
17	Iran, Islamic Republic of	7	0.4%
18	Ukraine	7	0.4%
19	Bangladesh	6	0.4%
20	Cote D'ivoire	6	0.4%
21	Argentina	5	0.3%
22	United Kingdom	5	0.3%
23	Turkey	5	0.3%
24	Russia	4	0.2%
25	Egypt	4	0.2%
26	Iraq	4	0.2%
27	Ireland	4	0.2%
28	Mongolia	4	0.2%
29	Hungary	3	0.2%
30	Taiwan	3	0.2%
31	Hong Kong	2	0.1%
32	Czech Republic	2	0.1%
33	Denmark	2	0.1%
34	Poland	2	0.1%
35	Nigeria	2	0.1%
36	Indonesia	2	0.1%
37	Lithuania	1	0.1%
38	Malaysia	1	0.1%
39	Mauritius	1	0.1%
40	Moldova, Republic of	1	0.1%
41	Portugal	1	0.1%
42	Ghana	1	0.1%
43	Georgia	1	0.1%
44	South Africa	1	0.1%