Rank	Countries/Territories	Count	Percent
1	United States	567	42.1%
2	China	337	25%
3	Germany	108	8%
4	Canada	49	3.6%
5	Japan	36	2.7%
6	United Kingdom	32	2.4%
7	India	29	2.2%
8	France	28	2.1%
9	Ireland	23	1.7%
10	Australia	20	1.5%
11	Netherlands	16	1.2%
12	Korea, Republic of	10	0.7%
13	Hong Kong	9	0.7%
14	Greece	6	0.4%
15	Russia	6	0.4%
16	Egypt	6	0.4%
17	Cyprus	5	0.4%
18	New Zealand	5	0.4%
19	Taiwan	5	0.4%
20	Spain	4	0.3%
21	Sweden	4	0.3%
22	Estonia	4	0.3%
23	Brazil	3	0.2%
24	Singapore	3	0.2%
25	Israel	3	0.2%
26	South Africa	3	0.2%
27	Uganda	2	0.1%
28	Indonesia	2	0.1%
29	Slovenia	2	0.1%
30	Bangladesh	2	0.1%
31	Denmark	2	0.1%
32	Ecuador	1	0.1%
33	Faroe Islands	1	0.1%
34	Finland	1	0.1%
35	Belgium	1	0.1%
36	Austria	1	0.1%
37	Argentina	1	0.1%
38	Czech Republic	1	0.1%
39	Saudi Arabia	1	0.1%
40	Pakistan	1	0.1%
41	Panama	1	0.1%
42	Portugal	1	0.1%
43	Romania	1	0.1%
44	Iran, Islamic Republic of	1	0.1%
45	Italy	1	0.1%
46	Turkey	1	0.1%