Rank	Countries/Territories	Count	Percent
1	United States	202	31.4%
2	China	159	24.7%
3	Germany	94	14.6%
4	Brazil	17	2.6%
5	Norway	15	2.3%
6	Japan	14	2.2%
7	Canada	13	2%
8	Korea, Republic of	12	1.9%
9	Romania	12	1.9%
10	Netherlands	12	1.9%
11	Australia	9	1.4%
12	Belgium	9	1.4%
13	Switzerland	8	1.2%
14	India	7	1.1%
15	United Kingdom	7	1.1%
16	Turkey	5	0.8%
17	Singapore	5	0.8%
18	Spain	4	0.6%
19	Russia	4	0.6%
20	Poland	3	0.5%
21	Ireland	3	0.5%
22	Taiwan	3	0.5%
23	Mexico	3	0.5%
24	Cyprus	3	0.5%
25	Denmark	2	0.3%
26	France	2	0.3%
27	Iran, Islamic Republic of	2	0.3%
28	Thailand	2	0.3%
29	Israel	2	0.3%
30	United Arab Emirates	2	0.3%
31	Italy	1	0.2%
32	Argentina	1	0.2%
33	Portugal	1	0.2%
34	Ukraine	1	0.2%
35	Sweden	1	0.2%
36	Slovakia	1	0.2%
37	Hong Kong	1	0.2%
38	Mongolia	1	0.2%