Rank	Countries/Territories	Count	Percent
1	United States	363	44.3%
2	China	162	19.8%
3	Germany	88	10.7%
4	Poland	28	3.4%
5	United Kingdom	21	2.6%
6	Canada	17	2.1%
7	India	17	2.1%
8	Norway	12	1.5%
9	Netherlands	11	1.3%
10	Cyprus	9	1.1%
11	Czech Republic	7	0.9%
12	Russia	7	0.9%
13	Japan	7	0.9%
14	France	7	0.9%
15	Korea, Republic of	6	0.7%
16	Singapore	5	0.6%
17	Brazil	5	0.6%
18	Ireland	5	0.6%
19	Egypt	4	0.5%
20	Switzerland	4	0.5%
21	Ukraine	3	0.4%
22	Iran, Islamic Republic of	3	0.4%
23	Italy	2	0.2%
24	Greece	2	0.2%
25	Australia	2	0.2%
26	Bangladesh	2	0.2%
27	Denmark	2	0.2%
28	Cuba	2	0.2%
29	South Africa	2	0.2%
30	Spain	2	0.2%
31	Saudi Arabia	2	0.2%
32	Mexico	2	0.2%
33	Pakistan	2	0.2%
34	Romania	1	0.1%
35	Malta	1	0.1%
36	Taiwan	1	0.1%
37	Thailand	1	0.1%
38	Bolivia, Plurinational State of	1	0.1%
39	Cameroon	1	0.1%
40	Iceland	1	0.1%