Rank	Countries/Territories	Count	Percent
1	United States	457	47.3%
2	China	170	17.6%
3	Germany	124	12.8%
4	Canada	38	3.9%
5	Ireland	27	2.8%
6	Japan	22	2.3%
7	France	21	2.2%
8	Australia	14	1.4%
9	Singapore	13	1.3%
10	Mongolia	11	1.1%
11	Netherlands	11	1.1%
12	Cyprus	8	0.8%
13	Spain	6	0.6%
14	India	4	0.4%
15	Bangladesh	4	0.4%
16	Turkey	3	0.3%
17	Poland	3	0.3%
18	Russia	3	0.3%
19	Korea, Republic of	2	0.2%
20	Lithuania	2	0.2%
21	United Kingdom	2	0.2%
22	Switzerland	2	0.2%
23	Belgium	2	0.2%
24	Iran, Islamic Republic of	2	0.2%
25	Iraq	2	0.2%
26	Denmark	2	0.2%
27	Cuba	2	0.2%
28	Hong Kong	1	0.1%
29	Hungary	1	0.1%
30	Bulgaria	1	0.1%
31	Argentina	1	0.1%
32	Colombia	1	0.1%
33	South Africa	1	0.1%
34	Ukraine	1	0.1%
35	Italy	1	0.1%
36	Norway	1	0.1%