condition mean min max ZT0-3 24.17878333333333 20.93515 26.895 ZT4-7 37.9948 37.9948 37.9948 ZT8-11 69.04425 69.04425 69.04425 ZT12-15 69.08782500000001 64.2048 73.97085 ZT16-19 53.1672 53.1672 53.1672 ZT20-23 54.83205 54.83205 54.83205