0  13.2
 1   7.1
 2   5.6
 3   5.7
 4   5.2
 5   4.7
 6   5.3
 7   4.4
 8   4.5
 9   4.2
10   3.7
11   3.8
12   4.5
13   4.3
14   7.6
15  16.3