condition mean min max ZT0-3 69.25 69.25 69.25 ZT4-7 98.3 98.3 98.3 ZT8-11 102.75 102.75 102.75 ZT12-15 87.2 87.2 87.2 ZT16-19 55.95 55.95 55.95 ZT20-23 88.35 88.35 88.35