condition mean min max 4 h after light 5.340815 4.2725 6.40913 8 h after light 3.5931800000000003 3.26347 3.92289 12 h after light 4.7333750000000006 4.55063 4.91612 4 h after dark 6.70303 6.01094 7.0703 8 h after dark 7.043216666666667 6.78985 7.48807 12 h after dark 6.913783333333333 6.53829 7.37033