condition mean min max 4 h after light 0.682331 0.507908 0.856754 8 h after light 0.4638645 0.413346 0.514383 12 h after light 0.8687165 0.804127 0.933306 4 h after dark 1.25017 1.20802 1.29232 8 h after dark 1.216995 1.06916 1.36483 12 h after dark 0.864947 0.781061 0.948833