condition mean min max 0 h after light 8.923845 7.63249 10.2152 2 h after light 9.732265 9.50591 9.95862 4 h after light 9.77852 9.70586 9.85118 8 h after light 17.3265 15.7647 18.8883 12 h after light 48.62095 46.6159 50.626 2 h after dark 57.88825 57.1281 58.6484 4 h after dark 42.840500000000006 35.886 49.795 8 h after dark 23.9159 17.4016 30.4302 12 h after dark 11.625174999999999 9.90885 13.3415