Rank	Countries/Territories	Count	Percent
1	United States	317	30.8%
2	China	263	25.6%
3	Netherlands	63	6.1%
4	Bulgaria	51	5%
5	Nigeria	33	3.2%
6	Japan	31	3%
7	Germany	22	2.1%
8	France	18	1.8%
9	United Kingdom	17	1.7%
10	Iran, Islamic Republic of	14	1.4%
11	Korea, Republic of	13	1.3%
12	South Africa	13	1.3%
13	Singapore	12	1.2%
14	Romania	9	0.9%
15	Italy	9	0.9%
16	Canada	9	0.9%
17	Australia	9	0.9%
18	Indonesia	8	0.8%
19	Spain	8	0.8%
20	Lithuania	7	0.7%
21	Mauritius	7	0.7%
22	Brazil	7	0.7%
23	Bolivia, Plurinational State of	6	0.6%
24	Turkey	6	0.6%
25	Thailand	5	0.5%
26	Russia	5	0.5%
27	Denmark	5	0.5%
28	Hong Kong	4	0.4%
29	India	4	0.4%
30	Norway	4	0.4%
31	Portugal	4	0.4%
32	Philippines	3	0.3%
33	Switzerland	3	0.3%
34	Viet Nam	3	0.3%
35	Mexico	3	0.3%
36	Czech Republic	3	0.3%
37	Ireland	2	0.2%
38	Latvia	2	0.2%
39	Mongolia	2	0.2%
40	Pakistan	2	0.2%
41	Costa Rica	2	0.2%
42	Belgium	2	0.2%
43	Uganda	2	0.2%
44	Ukraine	2	0.2%
45	Serbia	2	0.2%
46	Taiwan	1	0.1%
47	Sweden	1	0.1%
48	Togo	1	0.1%
49	Argentina	1	0.1%
50	Bangladesh	1	0.1%
51	Chile	1	0.1%
52	Croatia	1	0.1%
53	Dominican Republic	1	0.1%
54	Finland	1	0.1%
55	Georgia	1	0.1%
56	Malaysia	1	0.1%
57	Iraq	1	0.1%