condition mean min max ZT0-3 0.11352124999999999 0.075613 0.1514295 ZT4-7 0.6743525 0.6743525 0.6743525 ZT8-11 0.074908 0.074908 0.074908 ZT12-15 0 0 0 ZT16-19 0.0746555 0.0746555 0.0746555 ZT20-23 0.0 0.0 0.0