Rank	Countries/Territories	Count	Percent
1	United States	351	45.1%
2	China	107	13.7%
3	Germany	69	8.9%
4	Russia	35	4.5%
5	Latvia	30	3.9%
6	India	28	3.6%
7	Japan	26	3.3%
8	France	25	3.2%
9	Canada	17	2.2%
10	Korea, Republic of	13	1.7%
11	Netherlands	12	1.5%
12	Romania	12	1.5%
13	Denmark	9	1.2%
14	Iran, Islamic Republic of	8	1%
15	Hungary	4	0.5%
16	Taiwan	4	0.5%
17	Pakistan	3	0.4%
18	Peru	3	0.4%
19	Ethiopia	3	0.4%
20	Argentina	2	0.3%
21	Azerbaijan	2	0.3%
22	Ireland	2	0.3%
23	Hong Kong	2	0.3%
24	Norway	2	0.3%
25	United Kingdom	2	0.3%
26	Spain	2	0.3%
27	Seychelles	1	0.1%
28	Indonesia	1	0.1%
29	Italy	1	0.1%
30	Brazil	1	0.1%
31	Australia	1	0.1%
32	Austria	1	0.1%