Rank	Countries/Territories	Count	Percent
1	United States	277	44.9%
2	China	146	23.7%
3	Germany	51	8.3%
4	Ireland	25	4.1%
5	India	12	1.9%
6	Taiwan	8	1.3%
7	Netherlands	7	1.1%
8	Korea, Republic of	6	1%
9	France	6	1%
10	Singapore	6	1%
11	Ecuador	6	1%
12	United Kingdom	6	1%
13	Sweden	5	0.8%
14	Ukraine	4	0.6%
15	Malaysia	4	0.6%
16	Canada	4	0.6%
17	Argentina	4	0.6%
18	Australia	4	0.6%
19	Cyprus	3	0.5%
20	Egypt	3	0.5%
21	Mexico	3	0.5%
22	Philippines	3	0.5%
23	Spain	3	0.5%
24	Turkey	2	0.3%
25	Romania	2	0.3%
26	Russia	2	0.3%
27	Iran, Islamic Republic of	2	0.3%
28	Italy	2	0.3%
29	Brazil	2	0.3%
30	Bulgaria	2	0.3%
31	Colombia	1	0.2%
32	Japan	1	0.2%
33	Greece	1	0.2%
34	Hong Kong	1	0.2%
35	Peru	1	0.2%
36	Latvia	1	0.2%
37	Switzerland	1	0.2%