condition mean min max ZT0-3 5074.75 5074.75 5074.75 ZT4-7 6848.9 6848.9 6848.9 ZT8-11 6715.9 6715.9 6715.9 ZT12-15 5914.8 5914.8 5914.8 ZT16-19 6235.05 6235.05 6235.05 ZT20-23 6452.0 6452.0 6452.0