condition mean min max 4 h after light 1.86783 1.68766 2.048 8 h after light 4.03679 3.75517 4.31841 12 h after light 5.327885 5.13621 5.51956 4 h after dark 6.323713333333333 5.88312 7.01451 8 h after dark 3.7714333333333334 3.52467 3.9826 12 h after dark 3.52115 2.71567 4.33573