Rank	Countries/Territories	Count	Percent
1	United States	351	43.7%
2	China	190	23.6%
3	Germany	64	8%
4	Ireland	25	3.1%
5	India	20	2.5%
6	Switzerland	13	1.6%
7	Taiwan	11	1.4%
8	Korea, Republic of	11	1.4%
9	Netherlands	9	1.1%
10	Mexico	8	1%
11	France	8	1%
12	United Kingdom	8	1%
13	Ecuador	6	0.7%
14	Singapore	6	0.7%
15	Sweden	6	0.7%
16	Japan	5	0.6%
17	Malaysia	4	0.5%
18	Spain	4	0.5%
19	Canada	4	0.5%
20	Cyprus	4	0.5%
21	Argentina	4	0.5%
22	Australia	4	0.5%
23	Ukraine	4	0.5%
24	Thailand	3	0.4%
25	Egypt	3	0.4%
26	Iran, Islamic Republic of	3	0.4%
27	Russia	3	0.4%
28	Philippines	3	0.4%
29	Poland	2	0.2%
30	Romania	2	0.2%
31	Italy	2	0.2%
32	Hong Kong	2	0.2%
33	Brazil	2	0.2%
34	Bulgaria	2	0.2%
35	Turkey	2	0.2%
36	Belgium	1	0.1%
37	Colombia	1	0.1%
38	Greece	1	0.1%
39	Latvia	1	0.1%
40	Peru	1	0.1%
41	South Africa	1	0.1%