condition mean min max ZT0-3 72.2447 72.2447 72.2447 ZT4-7 67.05285 67.05285 67.05285 ZT8-11 58.52305 58.52305 58.52305 ZT12-15 62.405249999999995 62.405249999999995 62.405249999999995 ZT16-19 63.5162 63.5162 63.5162 ZT20-23 67.91635 67.91635 67.91635