condition mean min max 2 h after light 0.07533916666666667 0.0 0.258467 6 h after light 0.0313885 0.0 0.188331 10 h after light 0.0 0.0 0.0 14 h after light 0.02992916666666667 0.0 0.179575 18 h after light 0.08352466666666668 0.0 0.501148 2 h after dark 0.0 0.0 0.0