30 4.5 6.0
30 3.5 6.5
30 5.2 5.0
40 5.2 6.0
40 4.0 4.5
40 2.5 5.0
50 4.4 4.5
50 2.8 4.0
50 1.0 3.7
60 4.0 3.8
60 2.0 3.0
60 1.1 2.4
70 1.1 1.5
70  .5 2.0
70 3.0 1.0