condition mean min max 0 h after light 0.3060845 0.204299 0.40787 4 h after light 0.7171925 0.603206 0.831179 8 h after light 0.409356 0.403525 0.415187 4 h after dark 0.4005805 0.0 0.801161 8 h after dark 0.2025435 0.0 0.405087 12 h after dark 0.201443 0.199225 0.203661