Rank	Countries/Territories	Count	Percent
1	United States	522	37.9%
2	China	393	28.6%
3	Germany	147	10.7%
4	Turkey	53	3.9%
5	France	34	2.5%
6	Japan	28	2%
7	Canada	25	1.8%
8	Ukraine	21	1.5%
9	Netherlands	21	1.5%
10	India	14	1%
11	Switzerland	12	0.9%
12	Korea, Republic of	11	0.8%
13	Cyprus	11	0.8%
14	Ireland	10	0.7%
15	Russia	8	0.6%
16	Singapore	8	0.6%
17	United Kingdom	7	0.5%
18	Argentina	6	0.4%
19	Brazil	5	0.4%
20	Italy	5	0.4%
21	Australia	4	0.3%
22	Iran, Islamic Republic of	4	0.3%
23	Hong Kong	3	0.2%
24	Latvia	2	0.1%
25	Lithuania	2	0.1%
26	Malaysia	2	0.1%
27	Mongolia	2	0.1%
28	Pakistan	2	0.1%
29	Poland	2	0.1%
30	South Africa	2	0.1%
31	Spain	2	0.1%
32	Sweden	2	0.1%
33	Israel	2	0.1%
34	Norway	1	0.1%
35	Taiwan	1	0.1%
36	Indonesia	1	0.1%
37	Ecuador	1	0.1%