Rank	Countries/Territories	Count	Percent
1	United States	165	34.1%
2	China	90	18.6%
3	Germany	66	13.6%
4	Ireland	33	6.8%
5	France	11	2.3%
6	Japan	10	2.1%
7	Spain	10	2.1%
8	Turkey	9	1.9%
9	Iran, Islamic Republic of	9	1.9%
10	Netherlands	7	1.4%
11	Korea, Republic of	7	1.4%
12	Slovakia	6	1.2%
13	Russia	5	1%
14	United Kingdom	5	1%
15	Canada	5	1%
16	Colombia	4	0.8%
17	Taiwan	4	0.8%
18	Singapore	4	0.8%
19	Norway	3	0.6%
20	Mexico	3	0.6%
21	Tunisia	3	0.6%
22	Hong Kong	3	0.6%
23	Italy	2	0.4%
24	Australia	2	0.4%
25	Austria	2	0.4%
26	Denmark	2	0.4%
27	Egypt	2	0.4%
28	Nepal	2	0.4%
29	Romania	1	0.2%
30	Sweden	1	0.2%
31	Switzerland	1	0.2%
32	Zambia	1	0.2%
33	El Salvador	1	0.2%
34	Cameroon	1	0.2%
35	Czech Republic	1	0.2%
36	Malaysia	1	0.2%
37	India	1	0.2%
38	Greece	1	0.2%