condition mean min max ZT0-3 33.5427067025 28.356485865 38.72892754 ZT4-7 19.228329062500002 18.988816825 19.4678413 ZT8-11 20.054747915 18.135944385000002 21.973551445 ZT12-15 28.622593892500003 22.212840030000002 35.032347755 ZT16-19 39.1374194325 35.048978465000005 43.2258604 ZT20-23 65.17178283999999 54.010553215 76.333012465