condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.07979833333333333 0.0 0.133669 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.036308 0.0 0.108924