Rank	Country	Keys
1	United States	167,053,596,305
2	Netherlands	67,559,267,941
3	Germany	48,778,710,091
4	United Kingdom	46,729,482,550
5	Canada	32,713,576,353
6	Poland	27,586,480,522
7	Australia	23,513,484,223
8	Sweden	20,773,867,886
9	Finland	14,901,208,179
10	Norway	14,067,331,253