Rank	Countries/Territories	Count	Percent
1	United States	379	36.9%
2	China	292	28.4%
3	Germany	102	9.9%
4	Latvia	49	4.8%
5	France	31	3%
6	Japan	27	2.6%
7	Korea, Republic of	15	1.5%
8	India	15	1.5%
9	Canada	15	1.5%
10	Brazil	13	1.3%
11	Netherlands	13	1.3%
12	Italy	9	0.9%
13	Singapore	8	0.8%
14	Spain	6	0.6%
15	Ireland	6	0.6%
16	Hong Kong	5	0.5%
17	United Kingdom	5	0.5%
18	Poland	4	0.4%
19	Thailand	3	0.3%
20	Norway	3	0.3%
21	Mongolia	3	0.3%
22	Iran, Islamic Republic of	3	0.3%
23	Australia	3	0.3%
24	Cyprus	3	0.3%
25	Denmark	2	0.2%
26	Belgium	2	0.2%
27	Argentina	2	0.2%
28	Nigeria	2	0.2%
29	Peru	1	0.1%
30	Morocco	1	0.1%
31	Mexico	1	0.1%
32	Ukraine	1	0.1%
33	Russia	1	0.1%
34	Switzerland	1	0.1%
35	Hungary	1	0.1%