Rank	Countries/Territories	Count	Percent
1	United States	452	42.1%
2	China	267	24.9%
3	Germany	101	9.4%
4	Latvia	41	3.8%
5	India	37	3.4%
6	Japan	25	2.3%
7		24	2.2%
8	Thailand	20	1.9%
9	United Kingdom	13	1.2%
10	Netherlands	13	1.2%
11	Korea, Republic of	13	1.2%
12	Iran, Islamic Republic of	11	1%
13	Cyprus	8	0.7%
14	Singapore	6	0.6%
15	Viet Nam	4	0.4%
16	Malaysia	4	0.4%
17	Indonesia	4	0.4%
18	Hong Kong	4	0.4%
19	Moldova, Republic of	3	0.3%
20	Russia	2	0.2%
21	Pakistan	2	0.2%
22	Sweden	2	0.2%
23	Switzerland	2	0.2%
24	Ukraine	2	0.2%
25	Canada	2	0.2%
26	France	2	0.2%
27	Denmark	1	0.1%
28	Ecuador	1	0.1%
29	Bangladesh	1	0.1%
30	Colombia	1	0.1%
31	Ireland	1	0.1%
32	Italy	1	0.1%
33	Romania	1	0.1%
34	Mexico	1	0.1%
35	Lithuania	1	0.1%
36	Macao	1	0.1%