condition mean min max ZT0-3 40.2681047675 14.93848342 65.597726115 ZT4-7 107.7497641375 100.738534925 114.76099334999999 ZT8-11 79.288206035 68.601557265 89.97485480499999 ZT12-15 23.2125370265 18.270678838000002 28.154395215 ZT16-19 12.055741985000001 10.384868090000001 13.72661588 ZT20-23 13.307056611250001 10.0928048675 16.521308355000002