condition mean min max ZT0-3 13.630733386500001 9.757252913 17.50421386 ZT4-7 13.340073767749999 12.36396485 14.3161826855 ZT8-11 18.2043425675 13.106454414999998 23.302230719999997 ZT12-15 38.072708995 30.413046619999996 45.73237137 ZT16-19 43.1154216325 42.504977225 43.72586604 ZT20-23 34.1204705425 31.4657401 36.775200985