Rank	Countries/Territories	Count	Percent
1	United States	349	39.7%
2	China	310	35.3%
3	Germany	113	12.9%
4	France	34	3.9%
5	Switzerland	13	1.5%
6	Netherlands	9	1%
7	Korea, Republic of	8	0.9%
8	Japan	6	0.7%
9	Hong Kong	6	0.7%
10	Belgium	4	0.5%
11	Singapore	4	0.5%
12	Cyprus	3	0.3%
13	Canada	3	0.3%
14	Indonesia	3	0.3%
15	Israel	2	0.2%
16	Mongolia	2	0.2%
17	Australia	2	0.2%
18	New Zealand	2	0.2%
19	Sweden	1	0.1%
20	Ukraine	1	0.1%
21	Bangladesh	1	0.1%
22	Bulgaria	1	0.1%
23	Argentina	1	0.1%