condition mean min max 4 h after light 1.030845 0.0 2.06169 8 h after light 0.27228 0.0 0.54456 12 h after light 0.55494 0.0 1.10988 4 h after dark 0.5887133333333333 0.0 1.76614 8 h after dark 0.31756266666666666 0.0 0.795952 12 h after dark 0.123655 0.0 0.370965