condition mean min max 2 h after light 1.4654898333333333 0.238936 3.24219 6 h after light 4.031531666666667 2.06129 9.81627 10 h after light 3.9101719999999998 0.238072 8.48463 14 h after light 2.162948 0.287208 4.43326 18 h after light 1.4891941666666666 0.186857 3.23836 2 h after dark 4.087981666666667 1.3736 6.71375