condition mean min max ZT0-3 0.053947166500000004 0.05144427 0.056450063 ZT4-7 0.012169442 0.0028513354999999997 0.021487548500000002 ZT8-11 0.849304214 0.1207317445 1.5778766835 ZT12-15 3.46464431025 2.6601926715 4.2690959490000004 ZT16-19 1.66421929 1.219726191 2.108712389 ZT20-23 0.38199130275000004 0.2245298075 0.539452798