condition mean min max 0 h after light 8.50112 7.76478 9.23746 2 h after light 6.0465800000000005 4.56356 7.5296 4 h after light 4.16132 3.85724 4.4654 8 h after light 7.3674599999999995 6.27277 8.46215 12 h after light 17.0922 16.9 17.2844 2 h after dark 17.326099999999997 16.8055 17.8467 4 h after dark 17.067999999999998 15.2027 18.9333 8 h after dark 17.56315 15.0869 20.0394 12 h after dark 10.355295 8.23959 12.471