--------------------------------------------------------------
4.0 | 8 18 15 8 5 4 3 2
3.2 | 8 17 21 12 7 5 4 3
2.4 | 15 21 17 10 7 5 4
1.6 | 11 22 21 17 10 7 5
0.8 | 16 24 21 17 12 8
0.0 | 9 16 22 21 21 15
-0.8 | 11 15 17 18
-1.6 | 8 8
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-1.6 -0.8 0.0 0.8 1.6 2.4 3.2 4.0