condition mean min max ZT0-3 0.94221225 0.911934 0.9724904999999999 ZT4-7 1.44522 1.44522 1.44522 ZT8-11 5.263135 5.263135 5.263135 ZT12-15 0 0 0 ZT16-19 4.46955 4.46955 4.46955 ZT20-23 3.3530049999999996 3.3530049999999996 3.3530049999999996