Rank	Countries/Territories	Count	Percent
1	United States	548	40.7%
2	China	390	29%
3	Germany	144	10.7%
4	Japan	53	3.9%
5	France	37	2.7%
6	Canada	33	2.5%
7	Mongolia	22	1.6%
8	Sweden	16	1.2%
9	Singapore	14	1%
10	Netherlands	14	1%
11	Norway	14	1%
12	Australia	12	0.9%
13	Argentina	6	0.4%
14	Cyprus	6	0.4%
15	Russia	6	0.4%
16	Taiwan	4	0.3%
17	United Kingdom	4	0.3%
18	Ukraine	3	0.2%
19	South Africa	3	0.2%
20	Bangladesh	3	0.2%
21	India	3	0.2%
22	Hong Kong	2	0.1%
23	Latvia	2	0.1%
24	Belgium	2	0.1%
25	Chile	1	0.1%
26	Malaysia	1	0.1%
27	Korea, Republic of	1	0.1%
28	Indonesia	1	0.1%
29	Ireland	1	0.1%