condition mean min max 4 h after light 2.8309800000000003 2.3115 3.35046 8 h after light 6.743065 5.85436 7.63177 12 h after light 8.63544 4.62468 12.6462 4 h after dark 3.15694 2.58198 3.51506 8 h after dark 10.02304 9.38215 11.1549 12 h after dark 4.140786666666667 0.0 9.35805