Rank	Countries/Territories	Count	Percent
1	United States	368	36.7%
2	China	364	36.3%
3	Germany	74	7.4%
4	United Kingdom	32	3.2%
5		21	2.1%
6	Japan	19	1.9%
7	Bulgaria	14	1.4%
8	France	11	1.1%
9	Cyprus	9	0.9%
10	Canada	9	0.9%
11	Netherlands	9	0.9%
12	Slovakia	9	0.9%
13	Switzerland	7	0.7%
14	Poland	7	0.7%
15	Ukraine	5	0.5%
16	Singapore	5	0.5%
17	Korea, Republic of	4	0.4%
18	Australia	4	0.4%
19	India	4	0.4%
20	Morocco	3	0.3%
21	Philippines	2	0.2%
22	Nigeria	2	0.2%
23	Latvia	2	0.2%
24	Russia	2	0.2%
25	Egypt	2	0.2%
26	Turkey	2	0.2%
27	Viet Nam	1	0.1%
28	Ireland	1	0.1%
29	Czech Republic	1	0.1%
30	Cote D'ivoire	1	0.1%
31	Bangladesh	1	0.1%
32	Belgium	1	0.1%
33	Brazil	1	0.1%
34	Argentina	1	0.1%
35	Senegal	1	0.1%
36	Romania	1	0.1%
37	Tanzania, United Republic of	1	0.1%
38	South Africa	1	0.1%
39	Mongolia	1	0.1%
40	Norway	1	0.1%