Rank	Countries/Territories	Count	Percent
1	United States	261	35.5%
2	China	257	35%
3	Germany	66	9%
4	Korea, Republic of	20	2.7%
5	India	17	2.3%
6	Hong Kong	13	1.8%
7	Mongolia	13	1.8%
8	Singapore	10	1.4%
9	Japan	9	1.2%
10	Taiwan	8	1.1%
11	Uganda	8	1.1%
12	France	7	1%
13	Ireland	6	0.8%
14	Canada	5	0.7%
15	Netherlands	4	0.5%
16	United Kingdom	4	0.5%
17	Iran, Islamic Republic of	3	0.4%
18	Cyprus	3	0.4%
19	Australia	3	0.4%
20	Egypt	2	0.3%
21	Malaysia	2	0.3%
22	Norway	2	0.3%
23	Poland	2	0.3%
24	Portugal	2	0.3%
25	Russia	2	0.3%
26	Ukraine	1	0.1%
27	Spain	1	0.1%
28	Georgia	1	0.1%
29	Bangladesh	1	0.1%
30	Brunei Darussalam	1	0.1%
31	Bulgaria	1	0.1%