Rank	Countries/Territories	Count	Percent
1	United States	850	53.8%
2	China	385	24.4%
3	Germany	140	8.9%
4	Netherlands	27	1.7%
5	France	25	1.6%
6	India	23	1.5%
7	Singapore	16	1%
8	Spain	15	0.9%
9	Ireland	12	0.8%
10	Japan	11	0.7%
11	Canada	11	0.7%
12	Iran, Islamic Republic of	9	0.6%
13	United Kingdom	9	0.6%
14	Korea, Republic of	7	0.4%
15	Ethiopia	7	0.4%
16	Saudi Arabia	5	0.3%
17	Mexico	3	0.2%
18	Egypt	3	0.2%
19	Australia	3	0.2%
20	Bangladesh	2	0.1%
21	Bulgaria	2	0.1%
22	Cyprus	2	0.1%
23	Latvia	2	0.1%
24	Indonesia	2	0.1%
25	Thailand	2	0.1%
26	Turkey	2	0.1%
27	Ukraine	2	0.1%
28	Tanzania, United Republic of	1	0.1%
29	Senegal	1	0.1%
30	Russia	1	0.1%
31	Argentina	1	0.1%