condition mean min max ZT0-3 0.037592885 0.0 0.07518577 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.056395500249999994 0.017794241000000002 0.09499675949999999 ZT16-19 0.087687896 0.0 0.175375792 ZT20-23 0.05280674925 0.0518081585 0.05380534