condition mean min max ZT0-3 0.03743818175 0.0 0.0748763635 ZT4-7 0.6049683045 0.2249579875 0.9849786215 ZT8-11 0.27420861875 0.21907394400000002 0.3293432935 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.06356469349999999 0.0 0.12712938699999998