condition mean min max ZT0-3 0.05668599999999999 0.0 0.170058 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0874795 0.0874795 0.0874795 ZT12-15 0.09139725 0.0 0.1827945 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0