condition mean min max ZT0-3 0.00464393975 0.0 0.0092878795 ZT4-7 0.013952218249999999 0.0 0.027904436499999997 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0195481785 0.007521069 0.031575288 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0147700455 0.0095999805 0.0199401105