Rank	Countries/Territories	Count	Percent
1	United States	508	36.7%
2	China	361	26.1%
3	Germany	109	7.9%
4	India	72	5.2%
5	Egypt	37	2.7%
6	France	33	2.4%
7	Netherlands	30	2.2%
8	Ireland	29	2.1%
9	Australia	26	1.9%
10	Japan	18	1.3%
11	Canada	12	0.9%
12	United Kingdom	12	0.9%
13	Singapore	12	0.9%
14	Italy	11	0.8%
15	Iran, Islamic Republic of	11	0.8%
16	Nigeria	10	0.7%
17	Hong Kong	7	0.5%
18	Ukraine	6	0.4%
19	Thailand	5	0.4%
20	South Africa	5	0.4%
21	Spain	4	0.3%
22	Russia	4	0.3%
23	Turkey	4	0.3%
24	Cyprus	4	0.3%
25	Argentina	4	0.3%
26	Barbados	3	0.2%
27	Indonesia	3	0.2%
28	Korea, Republic of	3	0.2%
29	Mexico	3	0.2%
30	Sweden	3	0.2%
31	Saudi Arabia	2	0.1%
32	Sri Lanka	2	0.1%
33	Israel	2	0.1%
34	Pakistan	2	0.1%
35	Qatar	2	0.1%
36	Romania	2	0.1%
37	Brazil	2	0.1%
38	Bulgaria	2	0.1%
39	Bangladesh	2	0.1%
40	Ethiopia	2	0.1%
41	Finland	2	0.1%
42	Ghana	2	0.1%
43	Greece	1	0.1%
44	Armenia	1	0.1%
45	Belgium	1	0.1%
46	Peru	1	0.1%
47	Philippines	1	0.1%
48	Oman	1	0.1%
49	Mongolia	1	0.1%
50	Sudan	1	0.1%
51	Slovenia	1	0.1%
52	Taiwan	1	0.1%