Rank	Countries/Territories	Count	Percent
1	United States	344	59.9%
2	China	88	15.3%
3	Germany	75	13.1%
4		16	2.8%
5	Japan	7	1.2%
6	Netherlands	6	1%
7	Canada	6	1%
8	Singapore	5	0.9%
9	Cyprus	4	0.7%
10	France	3	0.5%
11	Brazil	3	0.5%
12	United Kingdom	3	0.5%
13	Australia	2	0.3%
14	Hong Kong	2	0.3%
15	Iran, Islamic Republic of	2	0.3%
16	Spain	2	0.3%
17	Switzerland	2	0.3%
18	Thailand	1	0.2%
19	Philippines	1	0.2%
20	Korea, Republic of	1	0.2%
21	Argentina	1	0.2%