Rank	Countries/Territories	Count	Percent
1	United States	473	44.2%
2	China	152	14.2%
3	Germany	96	9%
4	Ireland	58	5.4%
5	Netherlands	55	5.1%
6	Canada	37	3.5%
7	India	34	3.2%
8	United Kingdom	26	2.4%
9	Australia	20	1.9%
10	Brazil	15	1.4%
11	France	10	0.9%
12	Ukraine	9	0.8%
13	South Africa	8	0.7%
14	Korea, Republic of	8	0.7%
15	Turkey	7	0.7%
16	Italy	4	0.4%
17	Singapore	4	0.4%
18	Egypt	4	0.4%
19	Bulgaria	4	0.4%
20	Cyprus	4	0.4%
21	Czech Republic	3	0.3%
22	Poland	3	0.3%
23	Indonesia	3	0.3%
24	Russia	3	0.3%
25	Sri Lanka	2	0.2%
26	Iran, Islamic Republic of	2	0.2%
27	Slovakia	2	0.2%
28	Kenya	2	0.2%
29	Morocco	2	0.2%
30	Costa Rica	2	0.2%
31	Ghana	2	0.2%
32	Greece	1	0.1%
33	Hong Kong	1	0.1%
34	Hungary	1	0.1%
35	Estonia	1	0.1%
36	Cabo Verde	1	0.1%
37	Austria	1	0.1%
38	Bangladesh	1	0.1%
39	New Zealand	1	0.1%
40	Philippines	1	0.1%
41	Romania	1	0.1%
42	Japan	1	0.1%
43	Latvia	1	0.1%
44	Lithuania	1	0.1%
45	Malta	1	0.1%
46	Sweden	1	0.1%
47	Switzerland	1	0.1%
48	Virgin Islands, U.S.	1	0.1%