Rank	Countries/Territories	Count	Percent
1	United States	162	42.1%
2	China	90	23.4%
3	Germany	39	10.1%
4	France	21	5.5%
5	Japan	11	2.9%
6	United Kingdom	11	2.9%
7	Korea, Republic of	8	2.1%
8	India	7	1.8%
9	Switzerland	7	1.8%
10	Netherlands	5	1.3%
11	Romania	3	0.8%
12	Malaysia	3	0.8%
13	Iraq	2	0.5%
14	Russia	2	0.5%
15	Singapore	2	0.5%
16	Hong Kong	2	0.5%
17	Cyprus	2	0.5%
18	Brazil	2	0.5%
19	Canada	2	0.5%
20	Bangladesh	1	0.3%
21	Poland	1	0.3%
22	Taiwan	1	0.3%
23	Ukraine	1	0.3%