Rank	Countries/Territories	Count	Percent
1	United States	475	34.8%
2	China	407	29.8%
3	Germany	101	7.4%
4	Japan	49	3.6%
5	Singapore	31	2.3%
6	Mongolia	29	2.1%
7	Canada	27	2%
8	Ireland	24	1.8%
9	France	16	1.2%
10	Hong Kong	15	1.1%
11	India	13	1%
12	Cyprus	12	0.9%
13	Netherlands	12	0.9%
14	Taiwan	12	0.9%
15	Russia	11	0.8%
16	Mexico	11	0.8%
17	Egypt	11	0.8%
18	Australia	10	0.7%
19	Norway	9	0.7%
20	Argentina	8	0.6%
21	Turkey	8	0.6%
22	Bulgaria	7	0.5%
23	United Arab Emirates	5	0.4%
24	Poland	5	0.4%
25	Spain	5	0.4%
26	Sweden	4	0.3%
27	Morocco	4	0.3%
28	Italy	4	0.3%
29	Korea, Republic of	4	0.3%
30	Latvia	3	0.2%
31	Philippines	3	0.2%
32	Switzerland	3	0.2%
33	United Kingdom	3	0.2%
34	Uganda	3	0.2%
35	Ukraine	2	0.1%
36	Thailand	2	0.1%
37	Kuwait	2	0.1%
38	Kazakhstan	2	0.1%
39	Bangladesh	2	0.1%
40	Brazil	2	0.1%
41	Bahrain	1	0.1%
42	Estonia	1	0.1%
43	Greece	1	0.1%
44	Lithuania	1	0.1%
45	Pakistan	1	0.1%
46	Palestine, State of	1	0.1%
47	Nepal	1	0.1%
48	Nigeria	1	0.1%
49	South Africa	1	0.1%
50	Uruguay	1	0.1%