Rank	Countries/Territories	Count	Percent
1	United States	229	37.3%
2	China	195	31.8%
3	Germany	48	7.8%
4	Singapore	24	3.9%
5	Hong Kong	23	3.7%
6	Argentina	17	2.8%
7	Netherlands	17	2.8%
8	United Kingdom	12	2%
9	Canada	9	1.5%
10	France	6	1%
11	Japan	6	1%
12	Korea, Republic of	6	1%
13	Australia	5	0.8%
14	Cyprus	3	0.5%
15	Romania	3	0.5%
16	Switzerland	3	0.5%
17	South Africa	2	0.3%
18	Latvia	2	0.3%
19	Mongolia	1	0.2%
20	Russia	1	0.2%
21	Philippines	1	0.2%
22	Ukraine	1	0.2%