condition mean min max 2 h after light 0.039792 0.0 0.126761 6 h after light 0.14254905 0.0 0.310854 10 h after light 0.17301105 0.0 0.512682 14 h after light 0.17517333333333332 0.0 0.535758 18 h after light 0.11426463333333334 0.0 0.231773 2 h after dark 0.13172066666666668 0.0 0.343276