condition mean min max 4 h after light 0.0207666 0.0 0.0415332 8 h after light 0.019833 0.0169564 0.0227096 12 h after light 0.0586569 0.0549394 0.0623744 4 h after dark 0.06400695 0.0362016 0.0918123 8 h after dark 0.04511445 0.0362833 0.0539456 12 h after dark 0.1015164 0.0601498 0.142883