condition mean min max ZT0-3 0.04738269875 0.0 0.0947653975 ZT4-7 0.0 0.0 0.0 ZT8-11 0.31742238175000004 0.172155114 0.4626896495 ZT12-15 0.501679169 0.322166612 0.681191726 ZT16-19 1.56483517875 1.3852682165 1.7444021410000001 ZT20-23 0.350027028 0.16089813050000001 0.5391559255