Rank	Countries/Territories	Count	Percent
1	United States	321	40.1%
2	China	259	32.3%
3	Germany	78	9.7%
4	France	65	8.1%
5	Canada	13	1.6%
6	Ireland	9	1.1%
7	Netherlands	8	1%
8	India	6	0.7%
9	Russia	6	0.7%
10	Singapore	5	0.6%
11	Cyprus	5	0.6%
12	Argentina	3	0.4%
13	Korea, Republic of	3	0.4%
14	Malaysia	2	0.2%
15	Mongolia	2	0.2%
16	Japan	2	0.2%
17	Romania	2	0.2%
18	Australia	2	0.2%
19	Iran, Islamic Republic of	2	0.2%
20	United Kingdom	2	0.2%
21	Slovenia	1	0.1%
22	Spain	1	0.1%
23	Ukraine	1	0.1%
24	Bangladesh	1	0.1%
25	Algeria	1	0.1%
26	Poland	1	0.1%