Rank	Countries/Territories	Count	Percent
1	United States	349	42.9%
2	China	320	39.3%
3	Germany	53	6.5%
4	Russia	16	2%
5	Japan	15	1.8%
6	Netherlands	12	1.5%
7	Singapore	6	0.7%
8	Cyprus	6	0.7%
9	United Kingdom	6	0.7%
10	Australia	5	0.6%
11	Iran, Islamic Republic of	4	0.5%
12	Ukraine	4	0.5%
13	France	3	0.4%
14	Bangladesh	2	0.2%
15	Argentina	2	0.2%
16	Norway	2	0.2%
17	Korea, Republic of	2	0.2%
18	Malaysia	2	0.2%
19	Mongolia	1	0.1%
20	Poland	1	0.1%
21	Ghana	1	0.1%
22	Hong Kong	1	0.1%
23	Canada	1	0.1%