condition mean min max ZT0-3 5129.6 5129.6 5129.6 ZT4-7 3802.1 3802.1 3802.1 ZT8-11 4132.3 4132.3 4132.3 ZT12-15 3042.05 3042.05 3042.05 ZT16-19 3870.65 3870.65 3870.65 ZT20-23 5216.65 5216.65 5216.65