condition mean min max 4 h after light 12.1360425 11.283481 12.988604 8 h after light 13.508532500000001 13.050705 13.96636 12 h after light 13.6428215 12.988604 14.297039 4 h after dark 16.7580645 15.982235 17.533894 8 h after dark 13.0921765 11.606467 14.577886 12 h after dark 17.619135 17.619135 17.619135