Rank	Countries/Territories	Count	Percent
1	United States	346	43.8%
2	China	148	18.7%
3	Germany	91	11.5%
4	France	32	4.1%
5	Netherlands	26	3.3%
6	Canada	22	2.8%
7	United Kingdom	19	2.4%
8	Russia	13	1.6%
9	Ireland	11	1.4%
10	India	10	1.3%
11	Australia	9	1.1%
12	Japan	8	1%
13	Cyprus	5	0.6%
14	Bulgaria	4	0.5%
15	Zambia	4	0.5%
16	Ethiopia	4	0.5%
17	Philippines	3	0.4%
18	Turkey	3	0.4%
19		3	0.4%
20	Austria	2	0.3%
21	Bolivia, Plurinational State of	2	0.3%
22	Czech Republic	2	0.3%
23	Israel	2	0.3%
24	Ukraine	2	0.3%
25	Norway	2	0.3%
26	Pakistan	2	0.3%
27	Singapore	2	0.3%
28	South Africa	2	0.3%
29	Switzerland	1	0.1%
30	Thailand	1	0.1%
31	Kuwait	1	0.1%
32	Lithuania	1	0.1%
33	Jamaica	1	0.1%
34	Iran, Islamic Republic of	1	0.1%
35	Georgia	1	0.1%
36	Greece	1	0.1%
37	Hong Kong	1	0.1%
38	Argentina	1	0.1%
39	Armenia	1	0.1%