condition mean min max ZT0-3 0.10432578333333332 0.0999543 0.10681145 ZT4-7 0.16135449999999998 0.16135449999999998 0.16135449999999998 ZT8-11 0.9031089999999999 0.9031089999999999 0.9031089999999999 ZT12-15 0.85783275 0.7282385 0.9874269999999999 ZT16-19 0.689036 0.689036 0.689036 ZT20-23 0.48589950000000004 0.48589950000000004 0.48589950000000004