condition mean min max 4 h after light 0.659458 0.446561 0.940041 8 h after light 0.06750816666666666 0.0 0.109897 12 h after light 0.2663234 0.0511972 0.426155 4 h after dark 1.7096643333333335 0.768903 2.24425 8 h after dark 2.11525 1.19564 3.63444 12 h after dark 1.270226 0.946938 1.50509