condition mean min max 0 h after light 8.491455 6.65271 10.3302 4 h after light 6.620535 4.51103 8.73004 8 h after light 7.008970000000001 5.25778 8.76016 4 h after dark 7.619225 5.09285 10.1456 8 h after dark 2.5496250000000003 1.46568 3.63357 12 h after dark 4.35709 2.94753 5.76665