condition mean min max ZT0-3 0.1798915 0.0 0.359783 ZT4-7 0.3540945 0.3540945 0.3540945 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.7068405 0.7068405 0.7068405 ZT20-23 0.0 0.0 0.0