condition mean min max 0 h after light 1.571605 1.32482 1.81839 4 h after light 2.094549 0.651938 3.53716 8 h after light 0.5795035 0.50482 0.654187 4 h after dark 21.76785 6.3568 37.1789 8 h after dark 2.784195 1.62808 3.94031 12 h after dark 7.554219999999999 4.12714 10.9813