condition mean min max ZT0-3 1.0581770000000001 0.900814 1.21554 ZT4-7 2.0123349999999998 2.0123349999999998 2.0123349999999998 ZT8-11 4.55778 4.55778 4.55778 ZT12-15 0 0 0 ZT16-19 3.186165 3.186165 3.186165 ZT20-23 1.29996 1.29996 1.29996