Rank	Countries/Territories	Count	Percent
1	United States	312	33.1%
2	China	261	27.6%
3	Germany	117	12.4%
4	Norway	50	5.3%
5	France	42	4.4%
6	Korea, Republic of	17	1.8%
7	Japan	15	1.6%
8	India	14	1.5%
9	United Kingdom	14	1.5%
10	Thailand	11	1.2%
11	Czech Republic	9	1%
12	Canada	7	0.7%
13	Philippines	6	0.6%
14	Hong Kong	5	0.5%
15	Australia	5	0.5%
16	Denmark	5	0.5%
17	Turkey	5	0.5%
18	Mexico	4	0.4%
19	Netherlands	4	0.4%
20	New Zealand	3	0.3%
21	Sweden	3	0.3%
22	Brazil	3	0.3%
23	Argentina	2	0.2%
24	Cyprus	2	0.2%
25	Greece	2	0.2%
26	Taiwan	2	0.2%
27	Russia	2	0.2%
28	Singapore	2	0.2%
29	Slovakia	2	0.2%
30	Portugal	2	0.2%
31	Latvia	2	0.2%
32	Lebanon	2	0.2%
33	Israel	2	0.2%
34	Italy	2	0.2%
35	Romania	1	0.1%
36	Iran, Islamic Republic of	1	0.1%
37	Ireland	1	0.1%
38	Ghana	1	0.1%
39	Colombia	1	0.1%
40	Austria	1	0.1%
41	Belgium	1	0.1%
42	Ukraine	1	0.1%