Rank	Countries/Territories	Count	Percent
1	United States	350	41.2%
2	China	286	33.7%
3	Germany	103	12.1%
4	Japan	29	3.4%
5	Canada	9	1.1%
6	France	7	0.8%
7	Argentina	7	0.8%
8	Australia	7	0.8%
9	Iran, Islamic Republic of	6	0.7%
10	Ireland	6	0.7%
11	Norway	6	0.7%
12	Latvia	4	0.5%
13	India	4	0.5%
14	Singapore	4	0.5%
15	Poland	3	0.4%
16	Cyprus	3	0.4%
17	Brazil	2	0.2%
18	Hong Kong	2	0.2%
19	Italy	2	0.2%
20	Mexico	2	0.2%
21	Mongolia	2	0.2%
22	Netherlands	2	0.2%
23	Russia	1	0.1%
24	Switzerland	1	0.1%
25	United Kingdom	1	0.1%