condition mean min max ZT0-3 4331.5 4331.5 4331.5 ZT4-7 4735.4 4735.4 4735.4 ZT8-11 4060.75 4060.75 4060.75 ZT12-15 3297.7 3297.7 3297.7 ZT16-19 3540.15 3540.15 3540.15 ZT20-23 3630.6 3630.6 3630.6