condition mean min max ZT0-3 0.02773825 0.0 0.0554765 ZT4-7 0.039194 0.039194 0.039194 ZT8-11 0.0 0.0 0.0 ZT12-15 0.086616625 0.02934625 0.14388700000000001 ZT16-19 0.0 0.0 0.0 ZT20-23 0 0 0