condition mean min max 4 h after light 6154.31452 5825.313719 6483.315321 8 h after light 5788.1446510000005 5726.834656 5849.454646 12 h after light 6934.460641 6383.881533 7485.039749 4 h after dark 7451.361726499999 6548.787652 8353.935801 8 h after dark 9356.577515500001 8323.583941 10389.57109 12 h after dark 6565.424364 6565.424364 6565.424364