Rank	Countries/Territories	Count	Percent
1	United States	578	46.8%
2	China	229	18.5%
3	Germany	66	5.3%
4	Netherlands	56	4.5%
5	Bulgaria	47	3.8%
6	France	25	2%
7	Russia	20	1.6%
8	Nigeria	19	1.5%
9	South Africa	16	1.3%
10	Singapore	15	1.2%
11	Japan	14	1.1%
12	United Kingdom	13	1.1%
13	Latvia	11	0.9%
14	Portugal	10	0.8%
15	Bolivia, Plurinational State of	9	0.7%
16	Canada	8	0.6%
17	Hong Kong	8	0.6%
18	India	8	0.6%
19	Thailand	7	0.6%
20	Turkey	6	0.5%
21	Iran, Islamic Republic of	6	0.5%
22	Bangladesh	6	0.5%
23	Australia	5	0.4%
24	Romania	5	0.4%
25	Sweden	5	0.4%
26	Morocco	4	0.3%
27	Greece	4	0.3%
28	Italy	4	0.3%
29	Brazil	3	0.2%
30	Belgium	2	0.2%
31	Iraq	2	0.2%
32	Ireland	2	0.2%
33	Moldova, Republic of	2	0.2%
34	Malaysia	2	0.2%
35	New Zealand	2	0.2%
36	Switzerland	2	0.2%
37	Ukraine	2	0.2%
38	Spain	2	0.2%
39	Viet Nam	2	0.2%
40	Myanmar	1	0.1%
41	Philippines	1	0.1%
42	Poland	1	0.1%
43	Mauritius	1	0.1%
44	Lithuania	1	0.1%
45	Argentina	1	0.1%
46	Czech Republic	1	0.1%
47	Azerbaijan	1	0.1%
48	Chile	1	0.1%