Rank	Countries/Territories	Count	Percent
1	United States	264	39.6%
2	China	112	16.8%
3	Germany	69	10.4%
4	Ireland	33	5%
5	France	28	4.2%
6	Japan	13	2%
7	Spain	12	1.8%
8	Turkey	9	1.4%
9	United Kingdom	9	1.4%
10	Iran, Islamic Republic of	9	1.4%
11	Netherlands	9	1.4%
12	Korea, Republic of	7	1.1%
13	Russia	6	0.9%
14	Taiwan	6	0.9%
15	Singapore	6	0.9%
16	Slovakia	6	0.9%
17	New Zealand	5	0.8%
18	Canada	5	0.8%
19	Colombia	4	0.6%
20	Australia	4	0.6%
21	India	4	0.6%
22	Hong Kong	3	0.5%
23	Norway	3	0.5%
24	Portugal	3	0.5%
25	Romania	3	0.5%
26	Mexico	3	0.5%
27	Brazil	3	0.5%
28	Tunisia	3	0.5%
29	Austria	2	0.3%
30	Denmark	2	0.3%
31	Ecuador	2	0.3%
32	Egypt	2	0.3%
33	Nepal	2	0.3%
34	Saudi Arabia	2	0.3%
35	Italy	2	0.3%
36	Malaysia	1	0.2%
37	El Salvador	1	0.2%
38	Algeria	1	0.2%
39	Greece	1	0.2%
40	Cameroon	1	0.2%
41	Cyprus	1	0.2%
42	Czech Republic	1	0.2%
43	South Africa	1	0.2%
44	Sweden	1	0.2%
45	Switzerland	1	0.2%
46	Zambia	1	0.2%