Rank	Countries/Territories	Count	Percent
1	United States	283	35.5%
2	China	220	27.6%
3	Germany	103	12.9%
4	Latvia	38	4.8%
5		23	2.9%
6	Netherlands	17	2.1%
7	Canada	15	1.9%
8	Cyprus	12	1.5%
9	Korea, Republic of	12	1.5%
10	Australia	10	1.3%
11	Argentina	8	1%
12	Singapore	7	0.9%
13	United Kingdom	6	0.8%
14	India	5	0.6%
15	Belgium	4	0.5%
16	Bulgaria	3	0.4%
17	Lithuania	3	0.4%
18	Hong Kong	3	0.4%
19	Mongolia	3	0.4%
20	Norway	2	0.3%
21	Ukraine	2	0.3%
22	Sweden	2	0.3%
23	France	2	0.3%
24	Iran, Islamic Republic of	2	0.3%
25	Japan	2	0.3%
26	Benin	2	0.3%
27	Austria	2	0.3%
28	Malaysia	1	0.1%
29	Switzerland	1	0.1%
30	Thailand	1	0.1%
31	Portugal	1	0.1%
32	Romania	1	0.1%
33	Spain	1	0.1%