condition mean min max 4 h after light 3.6572 2.86805 4.44635 8 h after light 2.819325 2.71728 2.92137 12 h after light 2.1396100000000002 2.13023 2.14899 4 h after dark 1.8950833333333332 1.81076 2.0317 8 h after dark 4.0954733333333335 3.03681 4.62801 12 h after dark 2.1363966666666667 1.50277 2.62515