Rank	Countries/Territories	Count	Percent
1	United States	257	45.2%
2	China	171	30.1%
3	Germany	60	10.5%
4	Ukraine	8	1.4%
5	Sweden	7	1.2%
6	Hong Kong	7	1.2%
7	Japan	6	1.1%
8	Singapore	6	1.1%
9	Trinidad and Tobago	5	0.9%
10	Netherlands	5	0.9%
11	France	5	0.9%
12	Argentina	3	0.5%
13	Canada	3	0.5%
14	Russia	3	0.5%
15	Ireland	2	0.4%
16	Philippines	2	0.4%
17	Jordan	2	0.4%
18	Korea, Republic of	2	0.4%
19	Luxembourg	2	0.4%
20	Australia	2	0.4%
21	Bangladesh	2	0.4%
22	Cyprus	2	0.4%
23	Egypt	2	0.4%
24	Georgia	1	0.2%
25	India	1	0.2%
26	Mongolia	1	0.2%
27	Namibia	1	0.2%
28	United Kingdom	1	0.2%