Rank	Countries/Territories	Count	Percent
1	United States	470	36.5%
2	China	371	28.8%
3	Germany	118	9.2%
4	France	55	4.3%
5	Netherlands	38	3%
6	Canada	31	2.4%
7	United Kingdom	24	1.9%
8	Ireland	16	1.2%
9	Australia	14	1.1%
10	Russia	14	1.1%
11	Taiwan	14	1.1%
12	Japan	12	0.9%
13	India	10	0.8%
14	Mexico	9	0.7%
15	Bulgaria	7	0.5%
16	Cyprus	7	0.5%
17	Korea, Republic of	6	0.5%
18	Turkey	5	0.4%
19	Zambia	4	0.3%
20	Norway	4	0.3%
21	Czech Republic	4	0.3%
22	Ethiopia	4	0.3%
23	Ghana	4	0.3%
24	Brazil	3	0.2%
25		3	0.2%
26	Philippines	3	0.2%
27	Romania	3	0.2%
28	Singapore	3	0.2%
29	South Africa	3	0.2%
30	Ukraine	2	0.2%
31	Austria	2	0.2%
32	Bolivia, Plurinational State of	2	0.2%
33	Pakistan	2	0.2%
34	Hong Kong	2	0.2%
35	Israel	2	0.2%
36	Italy	2	0.2%
37	Jamaica	1	0.1%
38	Kuwait	1	0.1%
39	Latvia	1	0.1%
40	Lithuania	1	0.1%
41	Iran, Islamic Republic of	1	0.1%
42	New Zealand	1	0.1%
43	Argentina	1	0.1%
44	Armenia	1	0.1%
45	Chile	1	0.1%
46	Greece	1	0.1%
47	Georgia	1	0.1%
48	Switzerland	1	0.1%
49	Thailand	1	0.1%