condition mean min max 4 h after light 7752.968333333333 7533.665 7904.59 8 h after light 9965.08611 7552.52 11521.095 12 h after light 12071.968886666667 10632.92333 13368.09 1.5 h after dark 12606.374446666667 10491.71667 15202.57 5.5 h after dark 12405.118886666667 10707.97 13438.19333 9.5 h after dark 9051.502222000001 8324.323333 10447.59