Rank	Countries/Territories	Count	Percent
1	United States	459	40.8%
2	China	201	17.9%
3	United Kingdom	75	6.7%
4	India	51	4.5%
5	Ireland	40	3.6%
6	Australia	26	2.3%
7	Japan	22	2%
8	Korea, Republic of	19	1.7%
9	Germany	19	1.7%
10	Netherlands	16	1.4%
11	Russia	16	1.4%
12	Romania	15	1.3%
13	Canada	14	1.2%
14	Ghana	11	1%
15	Pakistan	11	1%
16	Singapore	11	1%
17	France	10	0.9%
18	Brazil	9	0.8%
19	Turkey	9	0.8%
20	South Africa	8	0.7%
21	Iran, Islamic Republic of	8	0.7%
22	Indonesia	7	0.6%
23	Hong Kong	5	0.4%
24	Poland	5	0.4%
25	Cameroon	4	0.4%
26	Czech Republic	4	0.4%
27	Spain	4	0.4%
28	Switzerland	3	0.3%
29	Taiwan	3	0.3%
30	Ecuador	3	0.3%
31	Colombia	3	0.3%
32	Portugal	3	0.3%
33	Nigeria	3	0.3%
34	Italy	3	0.3%
35	Mexico	3	0.3%
36	Malaysia	2	0.2%
37	Kenya	2	0.2%
38	Philippines	2	0.2%
39	Rwanda	2	0.2%
40	Senegal	2	0.2%
41	Sri Lanka	2	0.2%
42	Uganda	2	0.2%
43	Zimbabwe	2	0.2%
44	Tanzania, United Republic of	1	0.1%
45	New Zealand	1	0.1%
46	Israel	1	0.1%
47	Congo	1	0.1%
48	Finland	1	0.1%
49	Iceland	1	0.1%
50	Iraq	1	0.1%