condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.04380866666666666 0.0 0.131426 4 h after dark 0.03229933333333333 0.0 0.096898 8 h after dark 0.024216166666666667 0.0 0.0726485 12 h after dark 0.0 0.0 0.0