Rank	Countries/Territories	Count	Percent
1	United States	231	34.8%
2	China	122	18.4%
3	Japan	84	12.7%
4	Germany	55	8.3%
5	Canada	23	3.5%
6	Singapore	20	3%
7	Norway	17	2.6%
8	Netherlands	13	2%
9	India	10	1.5%
10	Korea, Republic of	10	1.5%
11	Ireland	9	1.4%
12	Poland	6	0.9%
13	Venezuela, Bolivarian Republic of	5	0.8%
14	United Kingdom	5	0.8%
15	France	5	0.8%
16	Brazil	5	0.8%
17	Bulgaria	5	0.8%
18	Algeria	4	0.6%
19	Taiwan	4	0.6%
20	Spain	4	0.6%
21	Slovakia	3	0.5%
22	Australia	3	0.5%
23	Belgium	3	0.5%
24	Egypt	2	0.3%
25	Cyprus	2	0.3%
26	Morocco	2	0.3%
27	Nepal	2	0.3%
28	Peru	2	0.3%
29	Thailand	2	0.3%
30	Viet Nam	1	0.2%
31	Russia	1	0.2%
32	South Africa	1	0.2%
33	Switzerland	1	0.2%
34	Mauritius	1	0.2%
35	Denmark	1	0.2%