Rank	Countries/Territories	Count	Percent
1	United States	464	45.6%
2	China	303	29.8%
3	Germany	117	11.5%
4	France	31	3%
5	Japan	16	1.6%
6	Canada	15	1.5%
7	Netherlands	14	1.4%
8	Switzerland	12	1.2%
9	Singapore	9	0.9%
10	Korea, Republic of	5	0.5%
11	India	5	0.5%
12	Cyprus	4	0.4%
13	South Africa	4	0.4%
14	Norway	3	0.3%
15	Latvia	3	0.3%
16	Malaysia	2	0.2%
17	Mongolia	2	0.2%
18	Argentina	2	0.2%
19	Hong Kong	2	0.2%
20	United Kingdom	2	0.2%
21	Taiwan	1	0.1%
22	Thailand	1	0.1%
23	Poland	1	0.1%