Rank	Countries/Territories	Count	Percent
1	United States	339	41.3%
2	China	233	28.4%
3	Germany	127	15.5%
4	Latvia	33	4%
5	France	13	1.6%
6	Japan	11	1.3%
7	India	10	1.2%
8		8	1%
9	Australia	6	0.7%
10	Cyprus	6	0.7%
11	United Kingdom	5	0.6%
12	Senegal	4	0.5%
13	Iran, Islamic Republic of	4	0.5%
14	Netherlands	3	0.4%
15	Hong Kong	3	0.4%
16	Indonesia	2	0.2%
17	Norway	2	0.2%
18	Canada	2	0.2%
19	Singapore	2	0.2%
20	Ukraine	2	0.2%
21	Taiwan	1	0.1%
22	Bangladesh	1	0.1%
23	Brazil	1	0.1%
24	Argentina	1	0.1%
25	Ireland	1	0.1%