condition mean min max 0 h after light 2.356875 2.21614 2.49761 4 h after light 1.80728 1.63874 1.97582 8 h after light 2.50224 2.4666 2.53788 4 h after dark 5.451005 4.91655 5.98546 8 h after dark 3.8368349999999998 3.54676 4.12691 12 h after dark 4.93141 4.32991 5.53291