condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0232571 0.0 0.0465142 8 h after light 0.02259145 0.0 0.0451829 4 h after dark 0.02242205 0.0 0.0448441 8 h after dark 0.0224799 0.0 0.0449598 12 h after dark 0.0 0.0 0.0