condition mean min max 4 h after light 0.9646455 0.876761 1.05253 8 h after light 1.28864 1.1139 1.46338 12 h after light 2.0326649999999997 2.01869 2.04664 4 h after dark 3.4972000000000003 3.44306 3.55134 8 h after dark 2.0521399999999996 2.05 2.05428 12 h after dark 1.91065 1.90733 1.91397