condition mean min max 0 h after light 7.61676 6.88463 8.34889 4 h after light 4.704085 3.69207 5.7161 8 h after light 4.000355 3.94337 4.05734 4 h after dark 5.882445000000001 5.35918 6.40571 8 h after dark 5.730945 5.03826 6.42363 12 h after dark 7.5281649999999996 6.37164 8.68469