Rank	Countries/Territories	Count	Percent
1	United States	607	42.2%
2	China	392	27.2%
3	Germany	124	8.6%
4	Japan	52	3.6%
5	India	33	2.3%
6		33	2.3%
7	Mongolia	19	1.3%
8	Australia	18	1.2%
9	Singapore	14	1%
10	Netherlands	13	0.9%
11	Korea, Republic of	13	0.9%
12	France	13	0.9%
13	Ireland	11	0.8%
14	Ukraine	8	0.6%
15	Mexico	7	0.5%
16	Senegal	7	0.5%
17	Chile	7	0.5%
18	Canada	6	0.4%
19	Italy	6	0.4%
20	Taiwan	6	0.4%
21	Cyprus	5	0.3%
22	Argentina	4	0.3%
23	Austria	4	0.3%
24	Bangladesh	4	0.3%
25	Russia	4	0.3%
26	Spain	3	0.2%
27	United Kingdom	3	0.2%
28	Venezuela, Bolivarian Republic of	3	0.2%
29	Viet Nam	3	0.2%
30	Latvia	2	0.1%
31	Ecuador	2	0.1%
32	Colombia	2	0.1%
33	Hong Kong	2	0.1%
34	Indonesia	1	0.1%
35	Egypt	1	0.1%
36	Belgium	1	0.1%
37	Brazil	1	0.1%
38	Bulgaria	1	0.1%
39	Lithuania	1	0.1%
40	Macao	1	0.1%
41	Sweden	1	0.1%
42	Norway	1	0.1%
43	Peru	1	0.1%