Rank	Countries/Territories	Count	Percent
1	United States	272	34.1%
2	China	168	21.1%
3	Germany	95	11.9%
4	Japan	59	7.4%
5	Italy	52	6.5%
6	Ireland	18	2.3%
7	Canada	18	2.3%
8	France	17	2.1%
9	India	13	1.6%
10	Hong Kong	11	1.4%
11	Singapore	8	1%
12	Thailand	7	0.9%
13	Korea, Republic of	7	0.9%
14	Russia	6	0.8%
15	Netherlands	5	0.6%
16	Indonesia	4	0.5%
17	Burkina Faso	4	0.5%
18	Cyprus	3	0.4%
19	Ghana	3	0.4%
20	Spain	3	0.4%
21	South Africa	2	0.3%
22	Ukraine	2	0.3%
23	United Kingdom	2	0.3%
24	Viet Nam	2	0.3%
25	Romania	2	0.3%
26	Poland	2	0.3%
27	Colombia	2	0.3%
28	Bulgaria	2	0.3%
29	Australia	1	0.1%
30	Cote D'ivoire	1	0.1%
31	Greece	1	0.1%
32	Israel	1	0.1%
33	Portugal	1	0.1%
34	Norway	1	0.1%
35	Philippines	1	0.1%
36	Lebanon	1	0.1%
37	Taiwan	1	0.1%