condition mean min max 4 h after light 13.5349 12.6019 14.4679 8 h after light 15.9481 15.6999 16.1963 12 h after light 14.5279 14.0919 14.9639 4 h after dark 15.797450000000001 15.6271 15.9678 8 h after dark 13.89845 13.837 13.9599 12 h after dark 15.6827 15.052 16.3134