condition mean min max 0 h after light 13.8524 13.3964 14.3084 4 h after light 7.957705000000001 7.28386 8.63155 8 h after light 8.04242 7.11915 8.96569 4 h after dark 14.021650000000001 13.5718 14.4715 8 h after dark 13.29825 13.1937 13.4028 12 h after dark 14.03255 12.8177 15.2474