condition mean min max 0 h after light 5.9289000000000005 5.51273 6.34507 4 h after light 4.11135 3.94389 4.27881 8 h after light 2.523425 2.02974 3.01711 4 h after dark 7.159895000000001 5.29901 9.02078 8 h after dark 13.338650000000001 12.9306 13.7467 12 h after dark 7.297829999999999 7.26234 7.33332