condition mean min max ZT0-3 5879.2 5879.2 5879.2 ZT4-7 5653.7 5653.7 5653.7 ZT8-11 5301.75 5301.75 5301.75 ZT12-15 4845.85 4845.85 4845.85 ZT16-19 5856.1 5856.1 5856.1 ZT20-23 5278.05 5278.05 5278.05