condition mean min max ZT0-3 3397.75 3397.75 3397.75 ZT4-7 2905.7 2905.7 2905.7 ZT8-11 3566.2 3566.2 3566.2 ZT12-15 4009.2 4009.2 4009.2 ZT16-19 5144.05 5144.05 5144.05 ZT20-23 5137.85 5137.85 5137.85