condition mean min max ZT0-3 0.007414466666666667 0.0 0.0222434 ZT4-7 0.02117295 0.02117295 0.02117295 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0107265 0.0 0.021453 ZT16-19 0.02078555 0.02078555 0.02078555 ZT20-23 0.0 0.0 0.0