condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.153765 0.0 0.302032 12 h after light 0.049879966666666664 0.0 0.0834698 4 h after dark 0.016261933333333332 0.0 0.0487858 8 h after dark 0.0 0.0 0.0 12 h after dark 0.042263133333333334 0.0 0.0857694