Rank	Countries/Territories	Count	Percent
1	United States	476	39.7%
2	China	278	23.2%
3	Germany	153	12.8%
4	Canada	111	9.3%
5	Japan	30	2.5%
6	France	15	1.3%
7	Netherlands	14	1.2%
8	Australia	12	1%
9	Brazil	12	1%
10	Slovakia	11	0.9%
11	Turkey	7	0.6%
12	Russia	7	0.6%
13	Korea, Republic of	7	0.6%
14	Cyprus	7	0.6%
15	Romania	6	0.5%
16	Singapore	5	0.4%
17	Norway	5	0.4%
18	United Kingdom	4	0.3%
19	Austria	4	0.3%
20	Israel	4	0.3%
21	Hong Kong	4	0.3%
22	Ukraine	3	0.3%
23	Sweden	3	0.3%
24	Thailand	2	0.2%
25	Jordan	2	0.2%
26	India	2	0.2%
27	Iran, Islamic Republic of	2	0.2%
28	Italy	2	0.2%
29	Belgium	2	0.2%
30	Czech Republic	2	0.2%
31	Estonia	1	0.1%
32	Argentina	1	0.1%
33	Chile	1	0.1%
34	Iraq	1	0.1%
35	Ireland	1	0.1%
36	Portugal	1	0.1%
37	Spain	1	0.1%