condition mean min max 4 h after light 0.01778155 0.0 0.0355631 8 h after light 0.0529959 0.0288132 0.0771786 12 h after light 0.052785 0.0 0.10557 4 h after dark 0.0 0.0 0.0 8 h after dark 0.022984650000000002 0.0154136 0.0305557 12 h after dark 0.0 0.0 0.0