condition mean min max 0 h after light 13.04355 12.2866 13.8005 4 h after light 21.78165 18.9684 24.5949 8 h after light 44.01415 39.0371 48.9912 4 h after dark 37.556749999999994 36.5667 38.5468 8 h after dark 21.9 19.5984 24.2016 12 h after dark 15.2686 14.5489 15.9883