condition mean min max ZT0-3 75.4324 61.647 96.6679 ZT4-7 96.3668 96.3668 96.3668 ZT8-11 40.41185 40.41185 40.41185 ZT12-15 56.312225 54.530249999999995 58.0942 ZT16-19 50.4696 50.4696 50.4696 ZT20-23 61.49055 61.49055 61.49055