condition mean min max 0 h after light 17.4674 16.905 18.0298 4 h after light 18.6556 17.1942 20.117 8 h after light 33.48205 31.0414 35.9227 4 h after dark 29.8567 25.4326 34.2808 8 h after dark 21.9209 21.0293 22.8125 12 h after dark 18.657049999999998 18.1337 19.1804