condition mean min max ZT0-3 0.01956446925 0.0 0.0391289385 ZT4-7 0.0741986425 0.055466300999999996 0.092930984 ZT8-11 0.24527083624999999 0.114483803 0.3760578695 ZT12-15 0.6001368850000001 0.29586481600000003 0.9044089540000001 ZT16-19 1.8422799539999999 1.2554497274999998 2.4291101805 ZT20-23 3.38122494075 2.25033494 4.5121149415