Rank	Countries/Territories	Count	Percent
1	United States	224	37%
2	China	171	28.2%
3	Japan	55	9.1%
4	Germany	50	8.3%
5	Russia	19	3.1%
6	Singapore	17	2.8%
7	Ukraine	9	1.5%
8	Korea, Republic of	8	1.3%
9	Cyprus	5	0.8%
10	United Kingdom	5	0.8%
11	France	5	0.8%
12	Ethiopia	4	0.7%
13	Canada	4	0.7%
14	Ireland	4	0.7%
15	Italy	3	0.5%
16	Spain	3	0.5%
17	Romania	2	0.3%
18	Taiwan	2	0.3%
19	India	2	0.3%
20	Iran, Islamic Republic of	2	0.3%
21	Latvia	2	0.3%
22	Malaysia	2	0.3%
23	Australia	2	0.3%
24	Colombia	2	0.3%
25	Brazil	1	0.2%
26	Andorra	1	0.2%
27	Netherlands	1	0.2%
28	Sweden	1	0.2%