condition mean min max 4 h after light 0.01705755 0.0 0.0341151 8 h after light 0.0145703 0.0 0.0291406 12 h after light 0.0458443 0.0 0.0916886 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0