condition mean min max 0 h after light 0.373908 0.248976 0.49884 4 h after light 0.0 0.0 0.0 8 h after light 0.376604 0.246323 0.506885 4 h after dark 0.122746 0.0 0.245492 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0