Rank	Countries/Territories	Count	Percent
1	United States	336	25.4%
2	China	312	23.5%
3	Germany	110	8.3%
4	Ireland	109	8.2%
5	United Kingdom	52	3.9%
6	Korea, Republic of	32	2.4%
7	France	32	2.4%
8	Canada	29	2.2%
9	Japan	29	2.2%
10	Kenya	27	2%
11	India	22	1.7%
12	Netherlands	20	1.5%
13	Italy	17	1.3%
14	Singapore	14	1.1%
15	Switzerland	13	1%
16	Taiwan	13	1%
17	Indonesia	13	1%
18	Hong Kong	12	0.9%
19	Sweden	11	0.8%
20	Romania	10	0.8%
21	Australia	10	0.8%
22	Russia	9	0.7%
23	Bulgaria	7	0.5%
24	Egypt	7	0.5%
25	Finland	7	0.5%
26	Spain	6	0.5%
27	Portugal	6	0.5%
28	Philippines	6	0.5%
29	Poland	5	0.4%
30	Mauritius	4	0.3%
31	Belgium	4	0.3%
32	Bangladesh	3	0.2%
33	Denmark	3	0.2%
34	Cyprus	3	0.2%
35	New Zealand	3	0.2%
36	Nigeria	3	0.2%
37	Ukraine	3	0.2%
38	Viet Nam	2	0.2%
39	Norway	2	0.2%
40	Georgia	2	0.2%
41	Benin	2	0.2%
42	Hungary	2	0.2%
43	Israel	2	0.2%
44	Jordan	1	0.1%
45	Malaysia	1	0.1%
46	Ghana	1	0.1%
47	Iran, Islamic Republic of	1	0.1%
48	Iraq	1	0.1%
49	Bosnia and Herzegovina	1	0.1%
50	Brazil	1	0.1%
51	Albania	1	0.1%
52	Czech Republic	1	0.1%
53	Mexico	1	0.1%
54	Turkey	1	0.1%