Rank	Countries/Territories	Count	Percent
1	United States	502	48.8%
2	China	223	21.7%
3	Germany	116	11.3%
4	Netherlands	33	3.2%
5	France	31	3%
6	India	30	2.9%
7	Japan	16	1.6%
8	Ethiopia	12	1.2%
9	Ireland	12	1.2%
10	Australia	9	0.9%
11	Senegal	8	0.8%
12	Ukraine	6	0.6%
13	Canada	4	0.4%
14	Cyprus	4	0.4%
15	Singapore	3	0.3%
16	Iran, Islamic Republic of	3	0.3%
17	Kenya	2	0.2%
18	Korea, Republic of	2	0.2%
19	Pakistan	2	0.2%
20	Egypt	2	0.2%
21	Bulgaria	2	0.2%
22	Sri Lanka	2	0.2%
23	Switzerland	1	0.1%
24	Argentina	1	0.1%
25	Russia	1	0.1%
26	South Africa	1	0.1%