condition mean min max ZT0-3 125.55 125.55 125.55 ZT4-7 136.8 136.8 136.8 ZT8-11 118.4 118.4 118.4 ZT12-15 101.25 101.25 101.25 ZT16-19 108.75 108.75 108.75 ZT20-23 127.75 127.75 127.75