Rank	Countries/Territories	Count	Percent
1	United States	517	39.7%
2	China	406	31.2%
3	Germany	108	8.3%
4	Bulgaria	30	2.3%
5	Japan	27	2.1%
6	Netherlands	23	1.8%
7	Philippines	17	1.3%
8	France	17	1.3%
9	India	15	1.2%
10	Korea, Republic of	12	0.9%
11	Switzerland	12	0.9%
12	Singapore	11	0.8%
13	Russia	10	0.8%
14	Norway	7	0.5%
15	Latvia	7	0.5%
16	Iraq	7	0.5%
17	Cyprus	6	0.5%
18	Canada	6	0.5%
19	Argentina	6	0.5%
20	Mauritius	5	0.4%
21	Pakistan	4	0.3%
22	Brazil	4	0.3%
23	Australia	3	0.2%
24	Bangladesh	3	0.2%
25	Bolivia, Plurinational State of	3	0.2%
26	Malaysia	3	0.2%
27	Poland	3	0.2%
28	United Kingdom	3	0.2%
29	Turkey	2	0.2%
30	Viet Nam	2	0.2%
31	Nigeria	2	0.2%
32	Mexico	2	0.2%
33	Hong Kong	2	0.2%
34	Lithuania	2	0.2%
35	Denmark	2	0.2%
36	Ireland	2	0.2%
37	Italy	2	0.2%
38	Ethiopia	1	0.1%
39	Austria	1	0.1%
40	Cote D'ivoire	1	0.1%
41	Hungary	1	0.1%
42	Morocco	1	0.1%
43	Romania	1	0.1%
44	Thailand	1	0.1%
45	South Africa	1	0.1%
46	Spain	1	0.1%
47	Sweden	1	0.1%