condition mean min max ZT0-3 8.55588783075 4.4221290915 12.68964657 ZT4-7 0.4670668205 0.2014587765 0.7326748645 ZT8-11 38.43045732175 2.352119637 74.5087950065 ZT12-15 126.01704932750002 120.05699527000002 131.97710338500002 ZT16-19 65.54997951249999 51.616858179999994 79.483100845 ZT20-23 16.21879460375 10.3448399525 22.092749255