condition mean min max 0 h after light 1.465225 1.46392 1.46653 4 h after light 1.84862 1.25959 2.43765 8 h after light 1.4209749999999999 1.35177 1.49018 4 h after dark 3.089245 3.07933 3.09916 8 h after dark 2.8308150000000003 2.714 2.94763 12 h after dark 2.159315 1.29951 3.01912