0   0.896875
1   0.86875
2   0.875
3   0.8875
4   0.871875
5   0.86875
6   0.871875
7   0.871875
8   0.8875
9   0.89375
10  0.89375
11  0.88125
12  0.878125
13  0.875
14  0.878125
15  0.878125
16  0.875
17  0.878125
18  0.88125
19  0.878125
20  0.884375
21  0.871875
22  0.86875
23  0.875
24  0.871875
25  0.875
26  0.88125
27  0.878125
28  0.871875
29  0.875