Rank	Countries/Territories	Count	Percent
1	United States	497	45.8%
2	China	391	36.1%
3	Germany	115	10.6%
4	France	11	1%
5	Singapore	11	1%
6	Japan	9	0.8%
7	Russia	7	0.6%
8	Netherlands	6	0.6%
9	Australia	6	0.6%
10	Cyprus	4	0.4%
11	Canada	4	0.4%
12	India	4	0.4%
13	Romania	3	0.3%
14	United Kingdom	3	0.3%
15	Ukraine	2	0.2%
16	Iran, Islamic Republic of	2	0.2%
17	Italy	2	0.2%
18	Mongolia	2	0.2%
19	Hong Kong	2	0.2%
20	Austria	1	0.1%
21	Brazil	1	0.1%
22	Switzerland	1	0.1%