condition mean min max ZT0-3 0.2358303333333333 0.1081205 0.39939349999999996 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0990785 0.0990785 0.0990785 ZT12-15 0.2198585 0.0 0.439717 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0