condition mean min max ZT0-3 249.16207142500002 217.61466575000003 280.7094771 ZT4-7 61.47851648 42.12688998 80.83014298 ZT8-11 45.612497815 31.659739955 59.565255674999996 ZT12-15 88.2664361125 77.394921245 99.13795098 ZT16-19 131.8858954 131.14612490000002 132.6256659 ZT20-23 116.283632795 102.88713759000001 129.680128