condition mean min max ZT0-3 0.013703583333333333 0.0 0.04111075 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.09385475 0.0 0.1877095 ZT16-19 0.0410073 0.0410073 0.0410073 ZT20-23 0.0 0.0 0.0