condition mean min max ZT0-3 101.94999999999999 101.94999999999999 101.94999999999999 ZT4-7 64.9 64.9 64.9 ZT8-11 146.75 146.75 146.75 ZT12-15 99.7 99.7 99.7 ZT16-19 107.85 107.85 107.85 ZT20-23 88.89999999999999 88.89999999999999 88.89999999999999