Rank	Countries/Territories	Count	Percent
1	United States	420	46.9%
2	China	218	24.4%
3	Germany	119	13.3%
4	France	23	2.6%
5	United Kingdom	18	2%
6	Korea, Republic of	17	1.9%
7	Netherlands	17	1.9%
8	Canada	11	1.2%
9	Ireland	8	0.9%
10	Australia	6	0.7%
11	Russia	5	0.6%
12	Switzerland	4	0.4%
13	India	4	0.4%
14	Taiwan	3	0.3%
15	Uganda	3	0.3%
16	Singapore	3	0.3%
17	Peru	2	0.2%
18	Japan	2	0.2%
19	Malaysia	2	0.2%
20	Mexico	2	0.2%
21	Mongolia	1	0.1%
22	Italy	1	0.1%
23	Norway	1	0.1%
24	Hong Kong	1	0.1%
25	Cyprus	1	0.1%
26	Romania	1	0.1%
27	Slovenia	1	0.1%
28	Spain	1	0.1%