condition mean min max ZT0-3 69.0202 69.0202 69.0202 ZT4-7 100.5347 100.5347 100.5347 ZT8-11 53.963300000000004 53.963300000000004 53.963300000000004 ZT12-15 45.27035 45.27035 45.27035 ZT16-19 57.26235 57.26235 57.26235 ZT20-23 60.43545 60.43545 60.43545