condition mean min max 3 h after light 0.017769 0.0 0.053307 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.043546 0.0 0.130638 6 h after dark 0.03280196666666667 0.0 0.0518929 9 h after dark 0.0 0.0 0.0 12 h after dark 0.058519299999999996 0.0 0.102599