condition mean min max ZT0-3 0.128102347 0.068446933 0.187757761 ZT4-7 0.580349853 0.563678431 0.597021275 ZT8-11 0.473932566 0.4638236105 0.48404152149999996 ZT12-15 0.25458700300000003 0.1480674475 0.3611065585 ZT16-19 0.10864659025000001 0.106273005 0.11102017550000001 ZT20-23 0.12315637925 0.093785634 0.1525271245