condition mean min max 2 h after light 0.4333745 0.262342 0.685793 6 h after light 0.30439316666666666 0.0 0.569464 10 h after light 0.21590005 0.0664373 0.39152 14 h after light 0.23085713333333333 0.0787208 0.412861 18 h after light 0.4872013333333333 0.162255 1.2046 2 h after dark 0.6229795 0.334577 1.44181