Rank	Countries/Territories	Count	Percent
1	United States	412	41.5%
2	China	353	35.6%
3	Germany	81	8.2%
4	Switzerland	23	2.3%
5	Canada	17	1.7%
6		17	1.7%
7	Japan	13	1.3%
8	France	12	1.2%
9	Cyprus	12	1.2%
10	Bulgaria	6	0.6%
11	India	6	0.6%
12	Netherlands	6	0.6%
13	Finland	4	0.4%
14	Australia	3	0.3%
15	Turkey	3	0.3%
16	United Kingdom	3	0.3%
17	Lithuania	3	0.3%
18	Singapore	3	0.3%
19	South Africa	2	0.2%
20	Sweden	2	0.2%
21	Mauritius	2	0.2%
22	Mongolia	2	0.2%
23	Taiwan	2	0.2%
24	Argentina	1	0.1%
25	Poland	1	0.1%
26	Romania	1	0.1%
27	Russia	1	0.1%
28	Latvia	1	0.1%