condition mean min max 4 h after light 5.4197 5.29686 5.54254 8 h after light 3.6194699999999997 3.59761 3.64133 12 h after light 3.7767150000000003 3.66378 3.88965 4 h after dark 5.1699 5.01509 5.35894 8 h after dark 5.584746666666667 5.53875 5.66493 12 h after dark 5.7376499999999995 5.25644 6.68736