Rank	Countries/Territories	Count	Percent
1	United States	419	37.5%
2	China	282	25.2%
3	Germany	155	13.9%
4	Ireland	40	3.6%
5	India	37	3.3%
6	United Kingdom	27	2.4%
7	Netherlands	26	2.3%
8	France	14	1.3%
9	Norway	10	0.9%
10	Malawi	9	0.8%
11	Japan	7	0.6%
12	Tunisia	7	0.6%
13	Indonesia	6	0.5%
14	Cyprus	6	0.5%
15	Iran, Islamic Republic of	5	0.4%
16	Viet Nam	5	0.4%
17	Hong Kong	4	0.4%
18	Turkey	4	0.4%
19	Sri Lanka	4	0.4%
20	Mauritius	4	0.4%
21	Qatar	4	0.4%
22	Ukraine	3	0.3%
23	Russia	3	0.3%
24	Argentina	3	0.3%
25	Australia	3	0.3%
26	Brazil	3	0.3%
27	Malaysia	3	0.3%
28	Canada	2	0.2%
29	Bangladesh	2	0.2%
30	Saudi Arabia	2	0.2%
31	Senegal	2	0.2%
32	Singapore	2	0.2%
33	South Africa	2	0.2%
34	Mongolia	2	0.2%
35	Oman	2	0.2%
36	Palestine, State of	1	0.1%
37	Nepal	1	0.1%
38	Romania	1	0.1%
39	Sweden	1	0.1%
40	Thailand	1	0.1%
41	Egypt	1	0.1%
42	Kuwait	1	0.1%
43	Israel	1	0.1%