21  7 1.11
21  9 0.82
21 11 0.83
21 13 0.81
21 15 0.81
25  7 2.34
25  9 2.1
25 11 2.01
25 13 1.99
25 15 1.76
31  7 105.13
31  9 91.29
31 11 90.35
31 13 86.49
31 15 82.1