--------------------------------------------------------------
4.0 | 28 27 24 23 21 21 21 20
3.2 | 27 30 26 24 22 22 21 21
2.4 | 31 29 25 23 22 21 21
1.6 | 30 31 27 24 23 22 21
0.8 | 31 30 25 23 22 22
0.0 | 31 31 28 25 23 22
-0.8 | 31 31 26 24 23
-1.6 | 31 29 26 23
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-1.6 -0.8 0.0 0.8 1.6 2.4 3.2 4.0