Rank	Countries/Territories	Count	Percent
1	United States	339	35.4%
2	China	304	31.8%
3	Germany	85	8.9%
4	France	79	8.3%
5	Latvia	50	5.2%
6	Japan	16	1.7%
7	Netherlands	15	1.6%
8	Australia	13	1.4%
9	Norway	8	0.8%
10	Canada	6	0.6%
11	Cyprus	6	0.6%
12	Taiwan	6	0.6%
13	United Kingdom	5	0.5%
14	Singapore	4	0.4%
15		4	0.4%
16	Slovakia	3	0.3%
17	Ukraine	2	0.2%
18	Portugal	2	0.2%
19	Romania	2	0.2%
20	Kazakhstan	2	0.2%
21	India	2	0.2%
22	Korea, Republic of	1	0.1%
23	Bangladesh	1	0.1%
24	Hong Kong	1	0.1%
25	Spain	1	0.1%