Rank	Countries/Territories	Count	Percent
1	United States	602	35.2%
2	China	555	32.5%
3	Germany	139	8.1%
4	Latvia	93	5.4%
5	France	74	4.3%
6	Canada	39	2.3%
7	Japan	19	1.1%
8	Russia	18	1.1%
9	Singapore	18	1.1%
10	Philippines	16	0.9%
11	Australia	16	0.9%
12	Bulgaria	15	0.9%
13	Netherlands	15	0.9%
14	India	13	0.8%
15	Cyprus	11	0.6%
16	Argentina	7	0.4%
17	Indonesia	7	0.4%
18	Korea, Republic of	5	0.3%
19	Brazil	5	0.3%
20	Poland	5	0.3%
21	Ukraine	4	0.2%
22	United Kingdom	3	0.2%
23	Ireland	3	0.2%
24	Morocco	3	0.2%
25	Bangladesh	3	0.2%
26	Turkey	3	0.2%
27	Egypt	2	0.1%
28	Hong Kong	2	0.1%
29	Mauritius	2	0.1%
30	Viet Nam	2	0.1%
31	Sweden	2	0.1%
32	Switzerland	1	0.1%
33	Taiwan	1	0.1%
34	Mongolia	1	0.1%
35	Nigeria	1	0.1%
36	Norway	1	0.1%
37	Iran, Islamic Republic of	1	0.1%
38	Czech Republic	1	0.1%