condition mean min max 0 h after light 9.332525 8.14795 10.5171 4 h after light 2.66249 2.2352 3.08978 8 h after light 2.9171899999999997 2.32533 3.50905 4 h after dark 3.3932 2.92393 3.86247 8 h after dark 7.04894 6.53613 7.56175 12 h after dark 3.64808 3.22766 4.0685