condition mean min max 0 h after light 18.81895 18.6901 18.9478 2 h after light 6.721275 6.1596 7.28295 4 h after light 8.985645000000002 8.62479 9.3465 8 h after light 9.058935 7.45607 10.6618 12 h after light 12.556799999999999 10.015 15.0986 2 h after dark 13.857050000000001 12.0173 15.6968 4 h after dark 19.756700000000002 16.9825 22.5309 8 h after dark 24.6725 23.3637 25.9813 12 h after dark 21.22815 19.3078 23.1485