condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0493762 0.0268452 0.0719072 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0