condition mean min max ZT0-3 186.091 186.091 186.091 ZT4-7 178.3345 178.3345 178.3345 ZT8-11 118.4525 118.4525 118.4525 ZT12-15 101.55495 101.55495 101.55495 ZT16-19 140.73149999999998 140.73149999999998 140.73149999999998 ZT20-23 148.12 148.12 148.12