condition mean min max ZT0-3 3190.6 3190.6 3190.6 ZT4-7 5542.0 5542.0 5542.0 ZT8-11 5480.6 5480.6 5480.6 ZT12-15 3064.6000000000004 3064.6000000000004 3064.6000000000004 ZT16-19 1318.75 1318.75 1318.75 ZT20-23 1618.9499999999998 1618.9499999999998 1618.9499999999998