Rank	Countries/Territories	Count	Percent
1	United States	512	44.9%
2	China	290	25.4%
3	Germany	115	10.1%
4	Japan	40	3.5%
5	India	30	2.6%
6	Mongolia	17	1.5%
7	Korea, Republic of	13	1.1%
8	Singapore	12	1.1%
9	Australia	12	1.1%
10	Ireland	11	1%
11	Netherlands	10	0.9%
12	Ukraine	8	0.7%
13	Mexico	7	0.6%
14	Senegal	7	0.6%
15	Italy	6	0.5%
16	Canada	5	0.4%
17	Chile	5	0.4%
18	Cyprus	4	0.4%
19	Argentina	4	0.4%
20	France	4	0.4%
21	Russia	4	0.4%
22	Taiwan	3	0.3%
23	Spain	3	0.3%
24	Latvia	2	0.2%
25	Ecuador	2	0.2%
26	Colombia	2	0.2%
27	United Kingdom	2	0.2%
28	Bangladesh	1	0.1%
29	Belgium	1	0.1%
30	Brazil	1	0.1%
31	Bulgaria	1	0.1%
32	Egypt	1	0.1%
33	Indonesia	1	0.1%
34	Hong Kong	1	0.1%
35	Macao	1	0.1%
36	Norway	1	0.1%
37	Peru	1	0.1%
38	Sweden	1	0.1%