condition mean min max ZT0-3 899.8 899.8 899.8 ZT4-7 653.9 653.9 653.9 ZT8-11 588.75 588.75 588.75 ZT12-15 478.1 478.1 478.1 ZT16-19 624.25 624.25 624.25 ZT20-23 826.3 826.3 826.3