Rank	Countries/Territories	Count	Percent
1	United States	378	36.5%
2	China	365	35.3%
3	Germany	78	7.5%
4	Latvia	40	3.9%
5	France	32	3.1%
6	Czech Republic	23	2.2%
7	Netherlands	22	2.1%
8	Belgium	17	1.6%
9	Japan	16	1.5%
10	Korea, Republic of	15	1.4%
11	United Kingdom	8	0.8%
12	Russia	6	0.6%
13	Ireland	6	0.6%
14	Canada	3	0.3%
15	Australia	3	0.3%
16	Singapore	3	0.3%
17	Poland	2	0.2%
18	Romania	2	0.2%
19	Ukraine	2	0.2%
20	Denmark	2	0.2%
21	Cyprus	2	0.2%
22	Italy	2	0.2%
23	Hong Kong	2	0.2%
24	Iran, Islamic Republic of	1	0.1%
25	Mongolia	1	0.1%
26	Bangladesh	1	0.1%
27	Pakistan	1	0.1%
28	Switzerland	1	0.1%
29	Uganda	1	0.1%