condition mean min max 2 h after light 0.7822971666666667 0.246685 1.57528 6 h after light 0.4961511666666667 0.188597 0.685146 10 h after light 0.7330205 0.403061 1.06961 14 h after light 0.812723 0.558776 1.16706 18 h after light 0.7551046666666666 0.355093 1.4089 2 h after dark 0.567978 0.0 1.00584