condition mean min max 4 h after light 1.2903876666666667 0.599263 2.22453 8 h after light 1.652163 0.427569 3.17545 12 h after light 1.8074933333333334 1.11717 2.71597 4 h after dark 3.01024 2.49994 3.38659 8 h after dark 0.8797323333333333 0.539517 1.07921 12 h after dark 0.815023 0.579257 0.999868