condition mean min max ZT0-3 104.2893 96.39295 112.18565000000001 ZT4-7 129.254 129.254 129.254 ZT8-11 43.74625 43.74625 43.74625 ZT12-15 0 0 0 ZT16-19 26.587049999999998 26.587049999999998 26.587049999999998 ZT20-23 36.7313 36.7313 36.7313