Rank	Countries/Territories	Count	Percent
1	United States	488	40.3%
2	China	370	30.5%
3	Germany	123	10.1%
4	India	40	3.3%
5	Japan	32	2.6%
6	Canada	25	2.1%
7	Netherlands	21	1.7%
8	Singapore	21	1.7%
9	Australia	16	1.3%
10	Mongolia	13	1.1%
11	United Kingdom	12	1%
12	France	8	0.7%
13	Sweden	7	0.6%
14	Hong Kong	6	0.5%
15	Ethiopia	5	0.4%
16	Brazil	4	0.3%
17	Cyprus	3	0.2%
18	Bulgaria	2	0.2%
19	Burkina Faso	2	0.2%
20	Bangladesh	2	0.2%
21	Ireland	2	0.2%
22	Korea, Republic of	2	0.2%
23	Ukraine	2	0.2%
24	Switzerland	1	0.1%
25	Nigeria	1	0.1%
26	Norway	1	0.1%
27	Papua New Guinea	1	0.1%
28	Portugal	1	0.1%
29	Russia	1	0.1%