Rank	Countries/Territories	Count	Percent
1	United States	387	20.2%
2	China	360	18.8%
3	Germany	343	17.9%
4	Japan	218	11.4%
5	Ireland	82	4.3%
6	United Kingdom	58	3%
7	Korea, Republic of	47	2.4%
8	Canada	41	2.1%
9	Australia	36	1.9%
10	France	36	1.9%
11	Netherlands	33	1.7%
12	Taiwan	33	1.7%
13	Spain	27	1.4%
14	India	24	1.2%
15	Italy	16	0.8%
16	Brazil	14	0.7%
17	Romania	12	0.6%
18	Iran, Islamic Republic of	11	0.6%
19	Mexico	10	0.5%
20	Sweden	10	0.5%
21	Singapore	9	0.5%
22	Malaysia	9	0.5%
23	Hong Kong	9	0.5%
24	Chile	8	0.4%
25	Russia	8	0.4%
26	Egypt	7	0.4%
27	Indonesia	6	0.3%
28	Tunisia	6	0.3%
29	Saudi Arabia	5	0.3%
30	Poland	5	0.3%
31	Peru	4	0.2%
32	Switzerland	4	0.2%
33	Thailand	3	0.2%
34	Nigeria	3	0.2%
35	Mozambique	3	0.2%
36	Iceland	3	0.2%
37	Denmark	3	0.2%
38	Greece	3	0.2%
39	Austria	3	0.2%
40	Belgium	2	0.1%
41	Cote D'ivoire	2	0.1%
42	Cyprus	2	0.1%
43	Hungary	2	0.1%
44	Lithuania	2	0.1%
45	Nepal	2	0.1%
46	Togo	2	0.1%
47	Ukraine	1	0.1%
48	Uzbekistan	1	0.1%
49	Pakistan	1	0.1%
50	Portugal	1	0.1%
51	Ecuador	1	0.1%
52	Finland	1	0.1%
53	Bangladesh	1	0.1%