condition mean min max 2 h after light 0.0128801 0.0 0.0772806 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.0 0.0 0.0 18 h after light 0.0 0.0 0.0 2 h after dark 0.016450549999999998 0.0 0.0987033