condition mean min max ZT0-3 1593.8 1593.8 1593.8 ZT4-7 1678.8 1678.8 1678.8 ZT8-11 1611.35 1611.35 1611.35 ZT12-15 1441.75 1441.75 1441.75 ZT16-19 1604.75 1604.75 1604.75 ZT20-23 1645.25 1645.25 1645.25