condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.00416748 0.00416748 0.00416748 ZT8-11 0.0 0.0 0.0 ZT12-15 0.003848295 0.003848295 0.003848295 ZT16-19 0.0039358 0.0039358 0.0039358 ZT20-23 0.00890882 0.00890882 0.00890882