Rank	Countries/Territories	Count	Percent
1	United States	135	35.3%
2	China	113	29.6%
3	Germany	40	10.5%
4	Switzerland	15	3.9%
5	Japan	14	3.7%
6	Korea, Republic of	9	2.4%
7	Singapore	9	2.4%
8	Spain	4	1%
9	Thailand	4	1%
10	India	4	1%
11	Cyprus	4	1%
12	Australia	3	0.8%
13	Canada	3	0.8%
14	Ireland	3	0.8%
15	Malaysia	3	0.8%
16	Netherlands	3	0.8%
17	Israel	2	0.5%
18	Argentina	2	0.5%
19	Russia	2	0.5%
20	Hong Kong	2	0.5%
21	Egypt	2	0.5%
22	France	2	0.5%
23	United Kingdom	2	0.5%
24	Norway	1	0.3%
25	Poland	1	0.3%