condition mean min max ZT0-3 101.52175 100.9528 102.0907 ZT4-7 101.3425 101.3425 101.3425 ZT8-11 95.44745 95.44745 95.44745 ZT12-15 0 0 0 ZT16-19 109.63585 109.63585 109.63585 ZT20-23 112.702 112.702 112.702