condition mean min max ZT0-3 196.75 196.75 196.75 ZT4-7 185.3 185.3 185.3 ZT8-11 165.05 165.05 165.05 ZT12-15 202.5 202.5 202.5 ZT16-19 186.55 186.55 186.55 ZT20-23 227.3 227.3 227.3