n + br80 -> br81

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T (GK)SEF
0.1 1.00986
0.15 1.02683
0.2 1.04
0.3 1.06796
0.4 1.09709
0.5 1.11651
0.6 1.12621
0.7 1.12745
0.8 1.10891
0.9 1.09
1 1.04628
1.5 0.871106
2 0.752028
2.5 0.68
3 0.632215
3.5 0.596264
4 0.565084
4.5 0.532468
5 0.498288
6 0.42344
7 0.339506
8 0.26
9 0.188599
10 0.132323