condition mean min max 0 h after light 6.9181550000000005 6.52751 7.3088 4 h after light 13.99305 11.6018 16.3843 8 h after light 22.43325 20.2052 24.6613 4 h after dark 15.5574 15.1717 15.9431 8 h after dark 11.17785 11.0658 11.2899 12 h after dark 7.4507449999999995 4.37939 10.5221