Rank	Countries/Territories	Count	Percent
1	United States	583	35.5%
2	China	483	29.4%
3	Germany	108	6.6%
4	Russia	58	3.5%
5	Japan	56	3.4%
6	Bulgaria	52	3.2%
7	Latvia	38	2.3%
8	Netherlands	38	2.3%
9	Spain	27	1.6%
10	France	25	1.5%
11	Canada	18	1.1%
12	Switzerland	18	1.1%
13	Singapore	17	1%
14	United Kingdom	11	0.7%
15	Turkey	10	0.6%
16	Cyprus	9	0.5%
17	South Africa	8	0.5%
18	Australia	7	0.4%
19	India	7	0.4%
20	Nigeria	6	0.4%
21	Philippines	5	0.3%
22	Lithuania	4	0.2%
23	Portugal	4	0.2%
24	Iran, Islamic Republic of	4	0.2%
25	Ireland	4	0.2%
26	Argentina	4	0.2%
27	Bangladesh	3	0.2%
28	Malaysia	3	0.2%
29	Ukraine	3	0.2%
30	Viet Nam	3	0.2%
31	Mauritius	2	0.1%
32	Poland	2	0.1%
33	Kenya	2	0.1%
34	Taiwan	2	0.1%
35	Thailand	2	0.1%
36	Belgium	2	0.1%
37	Bolivia, Plurinational State of	2	0.1%
38	Egypt	2	0.1%
39	Ghana	2	0.1%
40	Iraq	2	0.1%
41	Hong Kong	1	0.1%
42	Brazil	1	0.1%
43	Czech Republic	1	0.1%
44	Togo	1	0.1%
45	Romania	1	0.1%