condition mean min max ZT0-3 0.59572745925 0.5874625875 0.603992331 ZT4-7 0.45626742249999996 0.3807737055 0.5317611394999999 ZT8-11 0.6495164877499999 0.550383694 0.7486492815 ZT12-15 1.171835589 0.818256511 1.525414667 ZT16-19 1.109497908 0.9176851025000001 1.3013107135 ZT20-23 2.1881084192499998 1.7714851809999999 2.6047316575