Rank	Countries/Territories	Count	Percent
1	United States	193	29.9%
2	China	144	22.3%
3		67	10.4%
4	India	54	8.4%
5	Japan	25	3.9%
6	United Kingdom	20	3.1%
7	Iran, Islamic Republic of	17	2.6%
8	Australia	16	2.5%
9	Saudi Arabia	13	2%
10	Korea, Republic of	12	1.9%
11	Germany	11	1.7%
12	Nigeria	8	1.2%
13	Poland	7	1.1%
14	Kenya	7	1.1%
15	Singapore	6	0.9%
16	Pakistan	6	0.9%
17	Morocco	4	0.6%
18	Netherlands	4	0.6%
19	Taiwan	4	0.6%
20	Cote D'ivoire	4	0.6%
21	Ireland	3	0.5%
22	Ghana	2	0.3%
23	Bulgaria	2	0.3%
24	Canada	2	0.3%
25	Egypt	2	0.3%
26	France	2	0.3%
27	Ukraine	2	0.3%
28	Viet Nam	2	0.3%
29	Lebanon	2	0.3%
30	Philippines	1	0.2%
31	Oman	1	0.2%
32	Bangladesh	1	0.2%
33	Antigua and Barbuda	1	0.2%
34	Greece	1	0.2%