condition mean min max 0 h after light 4.17324 3.88771 4.45877 4 h after light 1.2347575 0.841325 1.62819 8 h after light 0.827526 0.75646 0.898592 4 h after dark 2.641165 2.43282 2.84951 8 h after dark 2.981235 2.84623 3.11624 12 h after dark 2.7766599999999997 2.41988 3.13344