Rank	Countries/Territories	Count	Percent
1	United States	480	47.2%
2	China	300	29.5%
3	Germany	86	8.4%
4	Japan	39	3.8%
5	Netherlands	15	1.5%
6	Korea, Republic of	14	1.4%
7	France	13	1.3%
8	Spain	10	1%
9	Singapore	9	0.9%
10	United Kingdom	9	0.9%
11	Canada	6	0.6%
12	Cyprus	5	0.5%
13	Australia	4	0.4%
14	Malaysia	4	0.4%
15	Iran, Islamic Republic of	4	0.4%
16	Mongolia	3	0.3%
17	Ireland	2	0.2%
18	Romania	2	0.2%
19	Russia	2	0.2%
20	Georgia	2	0.2%
21	Hong Kong	2	0.2%
22	India	2	0.2%
23	Switzerland	2	0.2%
24	Ukraine	1	0.1%
25	South Africa	1	0.1%
26	Viet Nam	1	0.1%