Rank	Countries/Territories	Count	Percent
1	United States	425	42.5%
2	China	286	28.6%
3	Germany	143	14.3%
4	Japan	22	2.2%
5		21	2.1%
6	France	17	1.7%
7	Singapore	15	1.5%
8	India	12	1.2%
9	Norway	11	1.1%
10	Netherlands	10	1%
11	Cyprus	9	0.9%
12	Canada	5	0.5%
13	Argentina	4	0.4%
14	Australia	4	0.4%
15	Hong Kong	4	0.4%
16	Iran, Islamic Republic of	2	0.2%
17	Latvia	2	0.2%
18	Spain	2	0.2%
19	Taiwan	2	0.2%
20	Ukraine	1	0.1%
21	United Kingdom	1	0.1%
22	Switzerland	1	0.1%
23	Russia	1	0.1%
24	Bulgaria	1	0.1%