Rank	Countries/Territories	Count	Percent
1	United States	309	53.7%
2	China	111	19.3%
3	Germany	60	10.4%
4	Japan	25	4.3%
5	France	15	2.6%
6	Korea, Republic of	8	1.4%
7	Canada	7	1.2%
8	Netherlands	5	0.9%
9	United Kingdom	4	0.7%
10	Malaysia	4	0.7%
11	Ireland	4	0.7%
12	India	3	0.5%
13	Norway	3	0.5%
14	Indonesia	2	0.3%
15	Iceland	2	0.3%
16	Australia	2	0.3%
17	Cyprus	2	0.3%
18	Russia	2	0.3%
19	Singapore	2	0.3%
20	Slovakia	2	0.3%
21	Tunisia	2	0.3%
22	Poland	1	0.2%