Rank	Countries/Territories	Count	Percent
1	United States	259	37.5%
2	China	168	24.3%
3	Germany	52	7.5%
4	India	51	7.4%
5	Egypt	24	3.5%
6	France	16	2.3%
7	Korea, Republic of	15	2.2%
8	Japan	14	2%
9	Ireland	12	1.7%
10	Malaysia	10	1.4%
11	Netherlands	9	1.3%
12	Canada	7	1%
13	Brazil	5	0.7%
14	Cuba	4	0.6%
15	Iraq	4	0.6%
16	United Kingdom	4	0.6%
17	Saudi Arabia	3	0.4%
18	Serbia	3	0.4%
19	Nigeria	3	0.4%
20	Lithuania	2	0.3%
21	Thailand	2	0.3%
22	Tunisia	2	0.3%
23	Turkey	2	0.3%
24	Jordan	2	0.3%
25	Iran, Islamic Republic of	2	0.3%
26	Cyprus	2	0.3%
27	Ethiopia	2	0.3%
28	Rwanda	2	0.3%
29	Australia	1	0.1%
30	Ghana	1	0.1%
31	Hong Kong	1	0.1%
32	Ukraine	1	0.1%
33	Spain	1	0.1%
34	New Zealand	1	0.1%
35	Nepal	1	0.1%
36	Norway	1	0.1%
37	Pakistan	1	0.1%
38	Peru	1	0.1%