condition mean min max ZT0-3 0.48988574949999997 0.415757991 0.5640135079999999 ZT4-7 0.98935231675 0.8096364935 1.16906814 ZT8-11 0.79408567025 0.67442662 0.9137447205 ZT12-15 0.80095675325 0.399181528 1.2027319785000001 ZT16-19 0.48838301224999997 0.29364786249999997 0.683118162 ZT20-23 1.3027667649999999 1.0983282795 1.5072052505