condition mean min max 4 h after light 0.7876456666666667 0.399815 1.0698 8 h after light 2.313545 0.628825 3.61613 12 h after light 1.3827566666666666 1.33095 1.43836 4 h after dark 3.62753 2.72932 4.81782 8 h after dark 2.23555 1.678 2.8634 12 h after dark 1.2172143333333332 0.618203 1.65766