condition mean min max 4 h after light 13.0839 10.516 15.6518 8 h after light 9.75353 7.33556 12.1715 12 h after light 10.39036 5.91542 14.8653 4 h after dark 15.0264 11.8627 18.1901 8 h after dark 15.57225 12.2622 18.8823 12 h after dark 13.746849999999998 13.4614 14.0323