condition mean min max ZT0-3 0.0140385 0.0 0.028077 ZT4-7 0.0285574 0.0285574 0.0285574 ZT8-11 0.05625815 0.05625815 0.05625815 ZT12-15 0 0 0 ZT16-19 0.11032149999999999 0.11032149999999999 0.11032149999999999 ZT20-23 0.0278357 0.0278357 0.0278357