condition mean min max 4 h after light 4.987915 3.84106 6.13477 8 h after light 4.4529 3.50922 5.39658 12 h after light 4.864775 4.24376 5.48579 4 h after dark 6.830816666666667 5.78687 7.73507 8 h after dark 6.3374033333333335 4.70645 8.30987 12 h after dark 6.971253333333333 5.45768 9.60729