condition mean min max 0 h after light 1.9524 1.45198 2.45282 4 h after light 3.072575 3.06725 3.0779 8 h after light 2.90935 2.86791 2.95079 4 h after dark 3.181755 3.17548 3.18803 8 h after dark 3.7532900000000002 2.74514 4.76144 12 h after dark 2.35748 1.44745 3.26751