condition mean min max 4 h after light 11.586400000000001 10.2172 12.9556 8 h after light 19.77915 19.7043 19.854 12 h after light 27.051000000000002 26.1795 27.9225 4 h after dark 25.022433333333332 24.6956 25.2373 8 h after dark 17.369266666666668 16.7649 17.728 12 h after dark 13.568766666666667 12.7177 14.5689