condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.11463113275 0.0 0.2292622655 ZT8-11 0.0 0.0 0.0 ZT12-15 0.15834047925 0.0 0.3166809585 ZT16-19 0.0 0.0 0.0 ZT20-23 0.1775427645 0.0 0.355085529