condition mean min max 4 h after light 7.90106 6.69408 9.10804 8 h after light 6.476075 6.47496 6.47719 12 h after light 5.645899999999999 5.32785 5.96395 4 h after dark 7.498493333333333 7.27843 7.81557 8 h after dark 11.5777 10.3634 12.5366 12 h after dark 9.057583333333334 8.56207 9.45905