condition mean min max ZT0-3 17.05 17.05 17.05 ZT4-7 148.2 148.2 148.2 ZT8-11 146.7 146.7 146.7 ZT12-15 70.1 70.1 70.1 ZT16-19 35.05 35.05 35.05 ZT20-23 20.3 20.3 20.3