condition mean min max 4 h after light 0.691085 0.589728 0.792442 8 h after light 0.9114644999999999 0.859875 0.963054 12 h after light 0.750108 0.520055 0.980161 4 h after dark 1.0342415 0.869093 1.19939 8 h after dark 0.598024 0.515184 0.680864 12 h after dark 1.005399 0.996408 1.01439