Rank	Countries/Territories	Count	Percent
1	United States	305	28.5%
2	China	298	27.9%
3	Germany	112	10.5%
4	Ireland	83	7.8%
5	Korea, Republic of	35	3.3%
6	Canada	33	3.1%
7	France	28	2.6%
8		27	2.5%
9	India	22	2.1%
10	Netherlands	15	1.4%
11	Sweden	13	1.2%
12	Japan	13	1.2%
13	Greece	7	0.7%
14	Egypt	7	0.7%
15	Russia	7	0.7%
16	Spain	7	0.7%
17	Saudi Arabia	6	0.6%
18	Singapore	5	0.5%
19	Hong Kong	5	0.5%
20	Iran, Islamic Republic of	4	0.4%
21	Italy	4	0.4%
22	Taiwan	4	0.4%
23	Turkey	3	0.3%
24	Mexico	3	0.3%
25	Romania	3	0.3%
26	Cyprus	3	0.3%
27	Australia	3	0.3%
28	Brazil	3	0.3%
29	Denmark	2	0.2%
30	South Africa	2	0.2%
31	Palestine, State of	2	0.2%
32	Reunion	1	0.1%
33	Lithuania	1	0.1%
34	Uruguay	1	0.1%
35	United Kingdom	1	0.1%
36	Congo	1	0.1%
37	Iraq	1	0.1%