condition mean min max ZT0-3 0.75972 0.6051615 0.9142785 ZT4-7 1.1748995 1.1748995 1.1748995 ZT8-11 0.6847314999999999 0.6847314999999999 0.6847314999999999 ZT12-15 0 0 0 ZT16-19 0.8729655000000001 0.8729655000000001 0.8729655000000001 ZT20-23 1.63504 1.63504 1.63504