Rank	Countries/Territories	Count	Percent
1	United States	414	54%
2	China	165	21.5%
3	Germany	89	11.6%
4	Canada	15	2%
5	Japan	15	2%
6	Netherlands	13	1.7%
7	Switzerland	12	1.6%
8	France	10	1.3%
9	Singapore	9	1.2%
10	India	5	0.7%
11	Norway	3	0.4%
12	South Africa	2	0.3%
13	Korea, Republic of	2	0.3%
14	Malaysia	2	0.3%
15	Mongolia	2	0.3%
16	Hong Kong	2	0.3%
17	Argentina	2	0.3%
18	Cyprus	2	0.3%
19	Poland	1	0.1%
20	Taiwan	1	0.1%
21	Thailand	1	0.1%