condition mean min max 4 h after light 2.51416 2.24238 2.78594 8 h after light 2.3972100000000003 2.15761 2.63681 12 h after light 2.7996299999999996 2.53028 3.06898 4 h after dark 4.874513333333334 4.55867 5.32369 8 h after dark 5.157446666666667 4.87585 5.51889 12 h after dark 6.467056666666667 4.73364 8.0427