Rank	Countries/Territories	Count	Percent
1	United States	273	35.3%
2	China	229	29.6%
3		70	9%
4	Germany	34	4.4%
5	Russia	33	4.3%
6	India	22	2.8%
7	Canada	9	1.2%
8	United Kingdom	8	1%
9	Senegal	7	0.9%
10	Korea, Republic of	7	0.9%
11	Australia	7	0.9%
12	Israel	7	0.9%
13	Japan	7	0.9%
14	Hong Kong	6	0.8%
15	Argentina	6	0.8%
16	France	6	0.8%
17	South Africa	6	0.8%
18	Turkey	4	0.5%
19	Romania	4	0.5%
20	Taiwan	3	0.4%
21	Bangladesh	3	0.4%
22	Cyprus	2	0.3%
23	Jordan	2	0.3%
24	Iran, Islamic Republic of	2	0.3%
25	Ireland	2	0.3%
26	Tanzania, United Republic of	2	0.3%
27	Ukraine	2	0.3%
28	Mongolia	2	0.3%
29	Singapore	2	0.3%
30	Viet Nam	2	0.3%
31	Netherlands	1	0.1%
32	Isle of Man	1	0.1%
33	Indonesia	1	0.1%
34	Egypt	1	0.1%
35	Belgium	1	0.1%