condition mean min max 4 h after light 16.500674 16.192758 16.80859 8 h after light 15.7166675 15.256314 16.177021 12 h after light 13.349087 11.805043 14.893131 4 h after dark 14.2900275 13.835508 14.744547 8 h after dark 17.354868 15.256314 19.453422 12 h after dark 14.426114 14.426114 14.426114