condition mean min max 4 h after light 12.1857 11.8697 12.5017 8 h after light 12.49795 12.4449 12.551 12 h after light 11.75909 9.48688 14.0313 4 h after dark 13.063266666666667 10.2859 15.2443 8 h after dark 19.191866666666666 16.8977 21.502 12 h after dark 9.999505966666668 0.0338179 17.2326