Rank	Countries/Territories	Count	Percent
1	United States	464	39.9%
2	Germany	214	18.4%
3	China	180	15.5%
4	France	29	2.5%
5	Canada	26	2.2%
6	India	23	2%
7	Japan	21	1.8%
8	Korea, Republic of	21	1.8%
9	Netherlands	20	1.7%
10	Ireland	11	0.9%
11	Russia	11	0.9%
12	Spain	11	0.9%
13	Brazil	10	0.9%
14	Sweden	9	0.8%
15	Portugal	9	0.8%
16	Taiwan	9	0.8%
17	United Kingdom	9	0.8%
18	Egypt	8	0.7%
19	Italy	7	0.6%
20	Iran, Islamic Republic of	7	0.6%
21	Cyprus	6	0.5%
22	Hong Kong	6	0.5%
23	Colombia	5	0.4%
24	Singapore	5	0.4%
25	Switzerland	4	0.3%
26	Argentina	4	0.3%
27	Hungary	4	0.3%
28	Viet Nam	4	0.3%
29	Australia	3	0.3%
30	Chile	3	0.3%
31	Austria	2	0.2%
32	Bolivia, Plurinational State of	2	0.2%
33	Greece	2	0.2%
34	Czech Republic	2	0.2%
35	Philippines	2	0.2%
36	Poland	2	0.2%
37	New Zealand	2	0.2%
38	Ukraine	2	0.2%
39	Norway	1	0.1%
40	Mexico	1	0.1%
41	Slovenia	1	0.1%
42	Iceland	1	0.1%