condition mean min max 0 h after light 13.3992 13.0316 13.7668 2 h after light 8.99576 8.79785 9.19367 4 h after light 7.8311 6.97996 8.68224 8 h after light 6.419835 5.0864 7.75327 12 h after light 7.681979999999999 7.03254 8.33142 2 h after dark 9.661355 7.83761 11.4851 4 h after dark 10.98955 10.437 11.5421 8 h after dark 14.481349999999999 12.7441 16.2186 12 h after dark 15.57875 15.0753 16.0822