condition mean min max 2 h after light 6.498065 5.20183 7.45593 6 h after light 6.801895 4.27291 8.82582 10 h after light 5.032251666666666 3.09756 8.03219 14 h after light 4.8945 3.10351 6.51221 18 h after light 7.435736666666667 5.46995 12.3494 2 h after dark 5.4636700000000005 3.6761 7.57617