condition mean min max 0 h after light 4.215205 4.21145 4.21896 4 h after light 4.768985 3.12084 6.41713 8 h after light 5.17922 4.67673 5.68171 4 h after dark 7.53519 7.52033 7.55005 8 h after dark 8.330465 8.29551 8.36542 12 h after dark 5.85139 4.97048 6.7323