condition mean min max ZT0-3 4283.25 4283.25 4283.25 ZT4-7 5201.9 5201.9 5201.9 ZT8-11 5614.25 5614.25 5614.25 ZT12-15 5231.85 5231.85 5231.85 ZT16-19 5641.799999999999 5641.799999999999 5641.799999999999 ZT20-23 5528.75 5528.75 5528.75