Rank	Country	Keys
1	United States	163,757,197,326
2	Netherlands	66,801,783,318
3	Germany	46,671,231,960
4	United Kingdom	45,838,870,247
5	Canada	32,161,110,496
6	Poland	27,121,023,709
7	Australia	23,095,259,182
8	Sweden	20,468,632,716
9	Finland	14,715,110,158
10	Norway	13,877,621,464