condition mean min max ZT0-3 0.03121725 0.0 0.0624345 ZT4-7 0.9536144999999999 0.9536144999999999 0.9536144999999999 ZT8-11 0.3161475 0.3161475 0.3161475 ZT12-15 0 0 0 ZT16-19 1.071275 1.071275 1.071275 ZT20-23 0.950521 0.950521 0.950521