condition mean min max ZT0-3 4975.5 4975.5 4975.5 ZT4-7 4017.0 4017.0 4017.0 ZT8-11 3353.2 3353.2 3353.2 ZT12-15 3063.5 3063.5 3063.5 ZT16-19 3796.25 3796.25 3796.25 ZT20-23 4822.7 4822.7 4822.7