condition mean min max ZT0-3 110.6 110.6 110.6 ZT4-7 96.5 96.5 96.5 ZT8-11 119.94999999999999 119.94999999999999 119.94999999999999 ZT12-15 107.9 107.9 107.9 ZT16-19 126.25 126.25 126.25 ZT20-23 129.75 129.75 129.75