condition mean min max 0 h after light 3.611865 3.55587 3.66786 4 h after light 3.20237 3.14969 3.25505 8 h after light 3.02725 3.01101 3.04349 4 h after dark 4.65571 3.84986 5.46156 8 h after dark 4.9730799999999995 4.93544 5.01072 12 h after dark 3.26985 3.07214 3.46756