condition mean min max ZT0-3 202.45 202.45 202.45 ZT4-7 178.7 178.7 178.7 ZT8-11 185.85 185.85 185.85 ZT12-15 223.95 223.95 223.95 ZT16-19 211.25 211.25 211.25 ZT20-23 232.15 232.15 232.15