condition mean min max 0 h after light 6.023075 5.1983 6.84785 2 h after light 6.102045 6.08271 6.12138 4 h after light 5.344005 4.98015 5.70786 8 h after light 3.76752 3.49793 4.03711 12 h after light 5.50296 4.68785 6.31807 2 h after dark 5.727695000000001 5.50192 5.95347 4 h after dark 4.679955 4.1685 5.19141 8 h after dark 5.83667 5.71449 5.95885 12 h after dark 7.963615000000001 7.31919 8.60804