condition mean min max 0 h after light 3.41409 3.2717 3.55648 4 h after light 2.437715 2.19877 2.67666 8 h after light 2.654845 2.61703 2.69266 4 h after dark 4.316015 4.102 4.53003 8 h after dark 3.234935 3.04197 3.4279 12 h after dark 3.3654599999999997 3.05876 3.67216