condition mean min max ZT0-3 125.05 125.05 125.05 ZT4-7 45.2 45.2 45.2 ZT8-11 60.25 60.25 60.25 ZT12-15 79.85 79.85 79.85 ZT16-19 110.9 110.9 110.9 ZT20-23 71.4 71.4 71.4