condition mean min max 0 h after light 9.79774 7.94748 11.648 2 h after light 11.18565 10.867 11.5043 4 h after light 15.279050000000002 12.2218 18.3363 8 h after light 17.0751 14.7401 19.4101 12 h after light 21.41805 20.9258 21.9103 2 h after dark 26.2925 23.8723 28.7127 4 h after dark 25.9095 24.3828 27.4362 8 h after dark 17.9854 15.6847 20.2861 12 h after dark 12.36075 12.2585 12.463