Rank	Countries/Territories	Count	Percent
1	United States	448	39.1%
2	China	255	22.3%
3	Germany	101	8.8%
4	France	80	7%
5	India	33	2.9%
6	United Kingdom	26	2.3%
7	Japan	23	2%
8	Korea, Republic of	14	1.2%
9	Taiwan	14	1.2%
10	Brazil	14	1.2%
11	Czech Republic	13	1.1%
12	Spain	13	1.1%
13	Netherlands	13	1.1%
14	Sweden	10	0.9%
15	Canada	8	0.7%
16	Australia	8	0.7%
17	Indonesia	7	0.6%
18	Ukraine	7	0.6%
19	Singapore	6	0.5%
20	Slovenia	5	0.4%
21	Ireland	5	0.4%
22	Cyprus	5	0.4%
23	Denmark	5	0.4%
24	Belgium	4	0.3%
25	Italy	4	0.3%
26	Iran, Islamic Republic of	4	0.3%
27	Mongolia	4	0.3%
28	Portugal	3	0.3%
29	Hong Kong	2	0.2%
30	Mexico	2	0.2%
31	Thailand	2	0.2%
32	Switzerland	2	0.2%
33	Kuwait	1	0.1%
34	Romania	1	0.1%
35	Nigeria	1	0.1%
36	Greece	1	0.1%
37	Colombia	1	0.1%