condition mean min max ZT0-3 0.36210549999999997 0.361862 0.362349 ZT4-7 0.0 0.0 0.0 ZT8-11 0.1792445 0.1792445 0.1792445 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.5368065 0.5368065 0.5368065