condition mean min max ZT0-3 103.85 103.85 103.85 ZT4-7 97.6 97.6 97.6 ZT8-11 86.9 86.9 86.9 ZT12-15 119.65 119.65 119.65 ZT16-19 107.35 107.35 107.35 ZT20-23 110.5 110.5 110.5