condition mean min max ZT0-3 100.8 100.8 100.8 ZT4-7 62.4 62.4 62.4 ZT8-11 63.5 63.5 63.5 ZT12-15 103.75 103.75 103.75 ZT16-19 95.35 95.35 95.35 ZT20-23 95.6 95.6 95.6