condition mean min max 0 h after light 0.7945975000000001 0.694576 0.894619 4 h after light 1.4007175 0.880475 1.92096 8 h after light 7.174485000000001 6.77359 7.57538 4 h after dark 6.93178 6.45723 7.40633 8 h after dark 3.2360249999999997 2.6608 3.81125 12 h after dark 1.5143399999999998 1.09001 1.93867