condition mean min max ZT0-3 119.5 119.5 119.5 ZT4-7 80.0 80.0 80.0 ZT8-11 116.69999999999999 116.69999999999999 116.69999999999999 ZT12-15 59.8 59.8 59.8 ZT16-19 66.75 66.75 66.75 ZT20-23 114.55 114.55 114.55