condition mean min max ZT0-3 0.6756995 0.6756995 0.6756995 ZT4-7 0.40098449999999997 0.40098449999999997 0.40098449999999997 ZT8-11 0.9460285 0.9460285 0.9460285 ZT12-15 0.8768855 0.8768855 0.8768855 ZT16-19 1.3370799999999998 1.3370799999999998 1.3370799999999998 ZT20-23 0.694801 0.694801 0.694801