condition mean min max ZT0-3 0.11545633333333333 0.0 0.346369 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.33489075 0.3176185 0.352163 ZT16-19 0.2965205 0.2965205 0.2965205 ZT20-23 0.0 0.0 0.0