condition mean min max ZT0-3 85.15 85.15 85.15 ZT4-7 136.8 136.8 136.8 ZT8-11 143.85 143.85 143.85 ZT12-15 157.4 157.4 157.4 ZT16-19 203.95 203.95 203.95 ZT20-23 133.64999999999998 133.64999999999998 133.64999999999998