condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.07360016666666667 0.0 0.441601 18 h after light 0.0684665 0.0 0.410799 2 h after dark 0.0 0.0 0.0