condition mean min max ZT0-3 101.1868 101.1868 101.1868 ZT4-7 92.96875 92.96875 92.96875 ZT8-11 35.05465 35.05465 35.05465 ZT12-15 44.978 44.978 44.978 ZT16-19 116.295 116.295 116.295 ZT20-23 154.675 154.675 154.675