condition mean min max 4 h after light 0.365855 0.0 0.73171 8 h after light 1.549105 1.50004 1.59817 12 h after light 1.488905 1.16537 1.81244 4 h after dark 1.796808 0.690754 3.28996 8 h after dark 0.5690213333333334 0.36542 0.853741 12 h after dark 0.5646946666666667 0.0 1.19217