condition mean min max ZT0-3 0.80157169875 0.697126185 0.9060172125 ZT4-7 0.86529067675 0.5488892615000001 1.181692092 ZT8-11 0.9924903505 0.7919715405 1.1930091605 ZT12-15 0.5505016825 0.34934797250000005 0.7516553925 ZT16-19 0.43055482025 0.39186788800000005 0.4692417525 ZT20-23 1.240347434 1.0442959075 1.4363989605