condition mean min max 0 h after light 1.5533000000000001 1.53521 1.57139 4 h after light 3.098765 2.79694 3.40059 8 h after light 2.32247 1.97043 2.67451 4 h after dark 3.087325 3.01555 3.1591 8 h after dark 2.9716899999999997 2.72817 3.21521 12 h after dark 2.057315 1.79979 2.31484