condition mean min max 2 h after light 127.11 113.314 148.199 6 h after light 119.73685 98.1661 154.015 10 h after light 135.39511666666667 87.2758 215.734 14 h after light 147.98558333333332 92.8308 208.094 18 h after light 128.5012 93.3872 172.377 2 h after dark 196.61216666666667 163.167 231.439