Rank	Countries/Territories	Count	Percent
1	United States	518	52.2%
2	China	244	24.6%
3	Germany	93	9.4%
4	France	30	3%
5	Japan	21	2.1%
6	Netherlands	18	1.8%
7	Ukraine	11	1.1%
8	Sweden	9	0.9%
9	Singapore	5	0.5%
10	Spain	5	0.5%
11	Hong Kong	5	0.5%
12	Cyprus	4	0.4%
13	Canada	4	0.4%
14	Korea, Republic of	3	0.3%
15	United Kingdom	3	0.3%
16	Lithuania	2	0.2%
17	Malaysia	2	0.2%
18	Mauritius	2	0.2%
19	Mongolia	2	0.2%
20	Australia	2	0.2%
21	India	2	0.2%
22	Ireland	2	0.2%
23	Norway	1	0.1%
24	Poland	1	0.1%
25	Georgia	1	0.1%
26	South Africa	1	0.1%
27	Switzerland	1	0.1%
28	Taiwan	1	0.1%