Rank	Countries/Territories	Count	Percent
1	United States	277	37.6%
2	China	198	26.9%
3	Germany	47	6.4%
4	Netherlands	30	4.1%
5	Japan	27	3.7%
6	Estonia	16	2.2%
7	Korea, Republic of	15	2%
8		14	1.9%
9	India	13	1.8%
10	Canada	11	1.5%
11	United Kingdom	11	1.5%
12	Cyprus	7	0.9%
13	France	7	0.9%
14	Ireland	6	0.8%
15	Singapore	5	0.7%
16	Ukraine	5	0.7%
17	Hong Kong	5	0.7%
18	Australia	4	0.5%
19	Brazil	3	0.4%
20	Kuwait	3	0.4%
21	Sweden	3	0.4%
22	Taiwan	3	0.4%
23	Thailand	3	0.4%
24	Peru	2	0.3%
25	Portugal	2	0.3%
26	Lithuania	2	0.3%
27	Malaysia	2	0.3%
28	Iceland	2	0.3%
29	Iran, Islamic Republic of	2	0.3%
30	Morocco	1	0.1%
31	Egypt	1	0.1%
32	Greece	1	0.1%
33	Puerto Rico	1	0.1%
34	Russia	1	0.1%
35	Saudi Arabia	1	0.1%
36	Norway	1	0.1%
37	Philippines	1	0.1%
38	Poland	1	0.1%
39	Spain	1	0.1%
40	United Arab Emirates	1	0.1%
41	Viet Nam	1	0.1%