Rank	Countries/Territories	Count	Percent
1	United States	283	37.2%
2	China	247	32.5%
3	Germany	103	13.5%
4	Latvia	20	2.6%
5	Japan	12	1.6%
6	Iran, Islamic Republic of	12	1.6%
7	Netherlands	12	1.6%
8	Cyprus	10	1.3%
9	Canada	9	1.2%
10	Korea, Republic of	7	0.9%
11	Australia	6	0.8%
12		6	0.8%
13	Singapore	6	0.8%
14	Ireland	5	0.7%
15	Hong Kong	4	0.5%
16	Mongolia	3	0.4%
17	Argentina	3	0.4%
18	Russia	3	0.4%
19	United Kingdom	2	0.3%
20	South Africa	2	0.3%
21	France	2	0.3%
22	Colombia	1	0.1%
23	India	1	0.1%
24	Switzerland	1	0.1%
25	Norway	1	0.1%