condition mean min max 0 h after light 0.999133 0.665296 1.33297 4 h after light 1.355775 0.0 2.71155 8 h after light 4.335425 4.06339 4.60746 4 h after dark 3.274775 2.61362 3.93593 8 h after dark 1.31599 1.31047 1.32151 12 h after dark 0.3322015 0.0 0.664403