condition mean min max 4 h after light 11.4404035 9.22169 13.659117 8 h after light 11.3966355 10.051973 12.741298 12 h after light 10.887129999999999 10.880669 10.893591 4 h after dark 10.659713 10.438757 10.880669 8 h after dark 10.4881305 10.095592 10.880669 12 h after dark 10.880669 10.880669 10.880669