condition mean min max 4 h after light 1.315874 0.793828 1.83792 8 h after light 0.3215795 0.0 0.643159 12 h after light 0.956453 0.523666 1.38924 4 h after dark 0.23050900000000002 0.228855 0.232163 8 h after dark 0.9697795 0.802799 1.13676 12 h after dark 1.2656645 0.950619 1.58071