Rank	Countries/Territories	Count	Percent
1	United States	263	47.3%
2	Russia	80	14.4%
3	China	58	10.4%
4	Germany	42	7.6%
5	India	18	3.2%
6	United Kingdom	10	1.8%
7	Australia	9	1.6%
8	Korea, Republic of	7	1.3%
9	Nicaragua	6	1.1%
10	Israel	6	1.1%
11	Japan	6	1.1%
12	Canada	5	0.9%
13	Senegal	5	0.9%
14	Singapore	4	0.7%
15	South Africa	4	0.7%
16	Ireland	4	0.7%
17	France	3	0.5%
18	Greece	3	0.5%
19	Netherlands	3	0.5%
20	Taiwan	3	0.5%
21	Ukraine	3	0.5%
22	Turkey	2	0.4%
23	Romania	2	0.4%
24	Hong Kong	2	0.4%
25	Iran, Islamic Republic of	2	0.4%
26	Argentina	2	0.4%
27	Norway	1	0.2%
28	Latvia	1	0.2%
29	Mongolia	1	0.2%
30	Switzerland	1	0.2%