condition mean min max 4 h after light 5.22614 5.1214699999999995 5.3175099999999995 8 h after light 5.313866666666667 5.2990699999999995 5.33782 12 h after light 5.30486 5.17063 5.3974400000000005 4 h after dark 5.466019999999999 5.34296 5.57803 8 h after dark 5.2366866666666665 5.1218 5.40422 12 h after dark 5.439286666666667 5.35036 5.51591