Rank	Countries/Territories	Count	Percent
1	United States	513	46.4%
2	China	334	30.2%
3	Germany	111	10%
4	Latvia	39	3.5%
5	Netherlands	14	1.3%
6	France	11	1%
7	Switzerland	10	0.9%
8	Egypt	10	0.9%
9	Japan	10	0.9%
10	Australia	8	0.7%
11	Singapore	7	0.6%
12	Cyprus	6	0.5%
13	Hong Kong	6	0.5%
14	Argentina	6	0.5%
15	Korea, Republic of	5	0.5%
16	India	3	0.3%
17	United Kingdom	3	0.3%
18	Ukraine	2	0.2%
19	Russia	2	0.2%
20	Iran, Islamic Republic of	2	0.2%
21	Belgium	2	0.2%
22	Norway	1	0.1%
23	Malaysia	1	0.1%