Rank	Countries/Territories	Count	Percent
1	United States	509	41.3%
2	China	347	28.1%
3	Germany	93	7.5%
4	United Kingdom	39	3.2%
5	Latvia	36	2.9%
6		31	2.5%
7	France	30	2.4%
8	Netherlands	20	1.6%
9	Singapore	19	1.5%
10	Russia	16	1.3%
11	Denmark	13	1.1%
12	Japan	11	0.9%
13	Ukraine	7	0.6%
14	Hong Kong	6	0.5%
15	India	6	0.5%
16	Cyprus	6	0.5%
17	Australia	5	0.4%
18	Egypt	4	0.3%
19	Korea, Republic of	3	0.2%
20	Canada	3	0.2%
21	South Africa	3	0.2%
22	Spain	3	0.2%
23	Sweden	2	0.2%
24	Switzerland	2	0.2%
25	Turkey	2	0.2%
26	Pakistan	2	0.2%
27	Israel	2	0.2%
28	Nepal	2	0.2%
29	Iran, Islamic Republic of	2	0.2%
30	Argentina	2	0.2%
31	Cambodia	1	0.1%
32	Ireland	1	0.1%
33	Malaysia	1	0.1%
34	Mexico	1	0.1%
35	Romania	1	0.1%
36	New Zealand	1	0.1%
37	Thailand	1	0.1%