condition mean min max 4 h after light 12991.180556666666 12281.76 13802.015 8 h after light 13752.253333333332 12872.46 14738.65 12 h after light 10153.095553333334 10055.81333 10231.28 1.5 h after dark 8676.390000333333 8366.126667 8915.836667 5.5 h after dark 9205.924445666667 7870.95 10800.37667 9.5 h after dark 10437.54778 7809.13 11857.95667