condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0314699 0.0 0.0944097 9 h after light 0.0876748 0.0 0.169504 12 h after light 0.0 0.0 0.0 3 h after dark 0.10742033333333334 0.0 0.214844 6 h after dark 0.11310266666666667 0.0 0.185603 9 h after dark 0.209352 0.0 0.391314 12 h after dark 0.1774355 0.106379 0.248492