condition mean min max 3 h after light 1.6434 0.0 4.9302 6 h after light 2.14213 0.0 3.25699 9 h after light 2.2649033333333333 0.0 3.5684 12 h after light 2.1573 0.0 8.6292 3 h after dark 4.024336666666667 0.0 7.41144 6 h after dark 5.82674 0.0 11.0772 9 h after dark 4.101213333333334 0.0 9.58122 12 h after dark 3.263725 2.85753 3.66992