condition mean min max 0 h after light 17.83035 15.4545 20.2062 2 h after light 10.7994 9.4016 12.1972 4 h after light 4.839264999999999 4.59969 5.07884 8 h after light 4.994395 4.89874 5.09005 12 h after light 7.9547799999999995 7.91813 7.99143 2 h after dark 9.34592 8.24414 10.4477 4 h after dark 8.79668 8.33381 9.25955 8 h after dark 14.39395 14.2736 14.5143 12 h after dark 18.88815 18.4025 19.3738