condition mean min max 0 h after light 13.83145 13.7648 13.8981 2 h after light 13.049 13.0297 13.0683 4 h after light 12.8339 11.7731 13.8947 8 h after light 19.79615 18.3964 21.1959 12 h after light 24.11625 22.8154 25.4171 2 h after dark 18.91855 18.2002 19.6369 4 h after dark 18.77935 17.7262 19.8325 8 h after dark 13.4716 12.5983 14.3449 12 h after dark 11.503 10.7136 12.2924