condition mean min max ZT0-3 0.074311 0.0 0.222933 ZT4-7 0.2801045 0.2801045 0.2801045 ZT8-11 0.073497 0.073497 0.073497 ZT12-15 0.883196 0.8774139999999999 0.888978 ZT16-19 0.778648 0.778648 0.778648 ZT20-23 0.0 0.0 0.0