condition mean min max 0 h after light 3.30169 3.22785 3.37553 4 h after light 15.897649999999999 14.5982 17.1971 8 h after light 12.3161 12.2606 12.3716 4 h after dark 10.798645 9.26749 12.3298 8 h after dark 6.94078 6.5526 7.32896 12 h after dark 7.234725 3.67745 10.792