condition mean min max 3 h after light 19.6568 18.1504 22.2715 6 h after light 9.59598 8.29494 10.4297 9 h after light 4.629453333333333 4.39785 4.75606 12 h after light 10.8202925 5.07101 26.7728 3 h after dark 10.8155 10.44 11.416 6 h after dark 12.874699999999999 11.7777 13.4924 9 h after dark 17.672733333333333 16.7608 19.2971 12 h after dark 27.8221 24.4616 31.1826