Rank	Countries/Territories	Count	Percent
1	United States	335	42.2%
2	China	262	33%
3	Germany	85	10.7%
4	Netherlands	23	2.9%
5	Japan	21	2.6%
6	Korea, Republic of	10	1.3%
7	Switzerland	9	1.1%
8	Taiwan	7	0.9%
9	Hong Kong	5	0.6%
10	Australia	5	0.6%
11	Cyprus	4	0.5%
12	India	4	0.5%
13	Iran, Islamic Republic of	4	0.5%
14	Ukraine	4	0.5%
15	France	4	0.5%
16	Malaysia	2	0.3%
17	Romania	2	0.3%
18	Ireland	2	0.3%
19	Czech Republic	2	0.3%
20	Canada	1	0.1%
21	Italy	1	0.1%
22	Singapore	1	0.1%
23	Georgia	1	0.1%