Rank	Countries/Territories	Count	Percent
1	United States	297	37.9%
2	China	212	27.1%
3	Germany	77	9.8%
4	Korea, Republic of	19	2.4%
5	Russia	17	2.2%
6	France	15	1.9%
7	Japan	15	1.9%
8	Ukraine	13	1.7%
9	Switzerland	12	1.5%
10	Sweden	8	1%
11	United Kingdom	8	1%
12	India	8	1%
13	Australia	8	1%
14	Singapore	7	0.9%
15	Netherlands	7	0.9%
16	Puerto Rico	6	0.8%
17	Canada	6	0.8%
18	Belgium	5	0.6%
19	Czech Republic	4	0.5%
20	Ecuador	4	0.5%
21	Israel	4	0.5%
22	Spain	4	0.5%
23	Hong Kong	3	0.4%
24	Indonesia	2	0.3%
25	Brazil	2	0.3%
26	Bangladesh	2	0.3%
27	Peru	2	0.3%
28	New Zealand	2	0.3%
29	Lithuania	2	0.3%
30	United Arab Emirates	2	0.3%
31	Taiwan	2	0.3%
32	Thailand	2	0.3%
33	Turkey	2	0.3%
34	Malaysia	1	0.1%
35	Norway	1	0.1%
36	Cyprus	1	0.1%
37	Viet Nam	1	0.1%