condition mean min max ZT0-3 0.0036913 0.0036913 0.0036913 ZT4-7 0.0404467 0.0404467 0.0404467 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0094719 0.0094719 0.0094719 ZT16-19 0.0089134 0.0089134 0.0089134 ZT20-23 0.0 0.0 0.0