Rank	Countries/Territories	Count	Percent
1	United States	334	40.9%
2	China	282	34.5%
3	Germany	65	8%
4	Japan	37	4.5%
5	France	23	2.8%
6	Ukraine	12	1.5%
7	Korea, Republic of	10	1.2%
8	Taiwan	7	0.9%
9	India	6	0.7%
10	Canada	6	0.7%
11	Ireland	5	0.6%
12	Netherlands	5	0.6%
13	Singapore	5	0.6%
14	Serbia	3	0.4%
15	United Kingdom	2	0.2%
16	Romania	2	0.2%
17	Malaysia	2	0.2%
18	Cyprus	2	0.2%
19	Bangladesh	2	0.2%
20	Bulgaria	2	0.2%
21	Australia	1	0.1%
22	Austria	1	0.1%
23	Mongolia	1	0.1%
24	Russia	1	0.1%
25	Turkey	1	0.1%