Rank	Countries/Territories	Count	Percent
1	United States	134	27.5%
2	China	64	13.1%
3	India	39	8%
4	Germany	35	7.2%
5	United Kingdom	28	5.7%
6	Singapore	19	3.9%
7	Japan	19	3.9%
8	Netherlands	14	2.9%
9	Ireland	14	2.9%
10	South Africa	11	2.3%
11	Canada	9	1.8%
12	Tanzania, United Republic of	8	1.6%
13	Taiwan	7	1.4%
14	Saudi Arabia	7	1.4%
15	Poland	6	1.2%
16	Korea, Republic of	6	1.2%
17	Egypt	5	1%
18	Philippines	4	0.8%
19	Thailand	4	0.8%
20	United Arab Emirates	3	0.6%
21	Slovakia	3	0.6%
22	Pakistan	3	0.6%
23	Russia	3	0.6%
24	Iran, Islamic Republic of	3	0.6%
25	Ethiopia	3	0.6%
26	Bulgaria	3	0.6%
27	France	2	0.4%
28	Hong Kong	2	0.4%
29	Afghanistan	2	0.4%
30	Australia	2	0.4%
31	Iraq	2	0.4%
32	Mongolia	2	0.4%
33	Nigeria	2	0.4%
34	Romania	2	0.4%
35	Switzerland	2	0.4%
36	Spain	2	0.4%
37	Ukraine	2	0.4%
38	Turkey	1	0.2%
39	Sri Lanka	1	0.2%
40	Sweden	1	0.2%
41	Peru	1	0.2%
42	Norway	1	0.2%
43	Oman	1	0.2%
44	Austria	1	0.2%
45	Antigua and Barbuda	1	0.2%
46	Chile	1	0.2%
47	Cyprus	1	0.2%
48	Indonesia	1	0.2%
49	Finland	1	0.2%