condition mean min max 0 h after light 0.6406805 0.404147 0.877214 4 h after light 2.3267249999999997 2.19624 2.45721 8 h after light 11.04495 10.6278 11.4621 4 h after dark 2.883575 2.77846 2.98869 8 h after dark 1.33237 1.32678 1.33796 12 h after dark 0.399208 0.394812 0.403604