condition mean min max ZT0-3 2478.35 2478.35 2478.35 ZT4-7 2604.8 2604.8 2604.8 ZT8-11 2855.7 2855.7 2855.7 ZT12-15 2656.85 2656.85 2656.85 ZT16-19 2574.0 2574.0 2574.0 ZT20-23 2597.75 2597.75 2597.75