Rank	Countries/Territories	Count	Percent
1	United States	453	37.4%
2	China	400	33%
3	Germany	98	8.1%
4	Latvia	42	3.5%
5	Japan	34	2.8%
6	Switzerland	30	2.5%
7	Netherlands	20	1.7%
8	France	18	1.5%
9	United Kingdom	12	1%
10	India	12	1%
11	Korea, Republic of	11	0.9%
12	Canada	10	0.8%
13	Singapore	10	0.8%
14	Taiwan	6	0.5%
15	Russia	5	0.4%
16	Cyprus	5	0.4%
17	Argentina	5	0.4%
18	Australia	4	0.3%
19	Hong Kong	4	0.3%
20	Poland	4	0.3%
21	Colombia	3	0.2%
22	Dominican Republic	2	0.2%
23	Iran, Islamic Republic of	2	0.2%
24	Israel	2	0.2%
25	Lithuania	2	0.2%
26	Mexico	2	0.2%
27	Mongolia	2	0.2%
28	Viet Nam	2	0.2%
29	Ukraine	2	0.2%
30	Spain	2	0.2%
31	Sweden	2	0.2%
32	Malaysia	1	0.1%
33	Norway	1	0.1%
34	Italy	1	0.1%
35	Indonesia	1	0.1%
36	Czech Republic	1	0.1%