Rank	Countries/Territories	Count	Percent
1	United States	406	49.3%
2	China	216	26.2%
3	Germany	101	12.3%
4	Argentina	18	2.2%
5	France	16	1.9%
6	Korea, Republic of	9	1.1%
7	Netherlands	7	0.8%
8	Australia	7	0.8%
9	Switzerland	6	0.7%
10	Canada	5	0.6%
11	Ireland	5	0.6%
12	Japan	4	0.5%
13	Hong Kong	4	0.5%
14	Cyprus	4	0.5%
15	Singapore	3	0.4%
16	India	2	0.2%
17	Norway	2	0.2%
18	Russia	2	0.2%
19	Malaysia	2	0.2%
20	Mongolia	2	0.2%
21	Lithuania	1	0.1%
22	Bangladesh	1	0.1%
23	Ukraine	1	0.1%