condition mean min max 4 h after light 7.297454999999999 5.71877 8.87614 8 h after light 6.07897 5.93048 6.22746 12 h after light 6.0728100000000005 5.84109 6.30453 4 h after dark 9.036904999999999 7.87311 10.2007 8 h after dark 7.8756450000000005 7.77261 7.97868 12 h after dark 9.1966 8.0375 10.3557