condition mean min max 0 h after light 0.7107 0.624792 0.796608 4 h after light 0.623972 0.491931 0.756013 8 h after light 0.4114675 0.289091 0.533844 4 h after dark 1.2989095 0.980079 1.61774 8 h after dark 0.6885675 0.587372 0.789763 12 h after dark 0.687443 0.665849 0.709037