Rank	Countries/Territories	Count	Percent
1	United States	541	48.1%
2	China	199	17.7%
3	Germany	111	9.9%
4	Latvia	55	4.9%
5	Japan	31	2.8%
6	France	29	2.6%
7	Singapore	17	1.5%
8	Canada	13	1.2%
9	India	12	1.1%
10	Netherlands	12	1.1%
11	United Kingdom	12	1.1%
12	Bulgaria	10	0.9%
13	Indonesia	7	0.6%
14	Saudi Arabia	7	0.6%
15	Korea, Republic of	6	0.5%
16	Ireland	6	0.5%
17	Cyprus	6	0.5%
18	Australia	5	0.4%
19	Austria	5	0.4%
20	Turkey	5	0.4%
21	Egypt	4	0.4%
22	Thailand	4	0.4%
23	Romania	3	0.3%
24	Bangladesh	3	0.3%
25	Argentina	3	0.3%
26	Armenia	2	0.2%
27	Russia	2	0.2%
28	Nigeria	2	0.2%
29	Peru	2	0.2%
30	Philippines	1	0.1%
31	Poland	1	0.1%
32	Portugal	1	0.1%
33	Libya	1	0.1%
34	Mongolia	1	0.1%
35	Nepal	1	0.1%
36	Switzerland	1	0.1%
37	Colombia	1	0.1%
38	Denmark	1	0.1%
39	Ukraine	1	0.1%
40	United Arab Emirates	1	0.1%