condition mean min max ZT0-3 71.8667201475 67.626773985 76.10666631000001 ZT4-7 96.70542597333332 92.44466219 100.96618975666665 ZT8-11 117.99486351166667 101.14934535666666 134.84038166666667 ZT12-15 126.42378174999999 118.88232269999999 133.9652408 ZT16-19 106.41943162000001 104.56341473 108.27544851 ZT20-23 89.78125123166667 81.81569131666667 97.74681114666667