condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.04891525 0.0 0.0978305 8 h after light 0.049084 0.0 0.098168 4 h after dark 0.0 0.0 0.0 8 h after dark 0.049274 0.0 0.098548 12 h after dark 0.0 0.0 0.0