Strange google results

i am from germany. recently i found a strange phenomenon. when i search for the digits 1 through 9 on google with english as results language i get:

1 14.25

2 11.45

3 10.00

4 9.39

5 8.55

6 25.31 (??)

7 7.08

8 6.89

9 6.46

has anybody an idea why digit 6 is so overrepresented?