condition mean min max ZT0-3 99.15 99.15 99.15 ZT4-7 89.7 89.7 89.7 ZT8-11 113.35 113.35 113.35 ZT12-15 127.8 127.8 127.8 ZT16-19 116.85 116.85 116.85 ZT20-23 82.75 82.75 82.75