condition mean min max 2 h after light 2.574978333333333 1.96882 3.33943 6 h after light 2.196536666666667 1.40071 3.0873 10 h after light 1.5569085 0.493991 2.32438 14 h after light 1.6574635 0.691355 2.3442 18 h after light 2.43696 1.39016 3.76926 2 h after dark 2.3694349999999997 1.60019 3.49841