Rank	Countries/Territories	Count	Percent
1	United States	415	35.3%
2	China	403	34.3%
3	Germany	78	6.6%
4	France	42	3.6%
5	Japan	41	3.5%
6	Mongolia	20	1.7%
7	Netherlands	13	1.1%
8	Singapore	13	1.1%
9	Australia	13	1.1%
10	Canada	13	1.1%
11	India	12	1%
12	Hong Kong	10	0.9%
13	Italy	9	0.8%
14	Indonesia	8	0.7%
15	Korea, Republic of	8	0.7%
16	Brazil	7	0.6%
17	Cyprus	7	0.6%
18	Senegal	7	0.6%
19	Ecuador	6	0.5%
20	Spain	5	0.4%
21	New Zealand	4	0.3%
22	Iran, Islamic Republic of	4	0.3%
23	Taiwan	4	0.3%
24	United Kingdom	4	0.3%
25	Ukraine	3	0.3%
26	Denmark	3	0.3%
27	Peru	3	0.3%
28	Malaysia	3	0.3%
29	Romania	2	0.2%
30	Russia	2	0.2%
31	Slovakia	2	0.2%
32	Philippines	2	0.2%
33	Israel	2	0.2%
34	Honduras	2	0.2%
35	Argentina	1	0.1%
36	Portugal	1	0.1%
37	Qatar	1	0.1%
38	Norway	1	0.1%
39	Switzerland	1	0.1%
40	Thailand	1	0.1%