condition mean min max ZT0-3 0.05858733333333333 0.0 0.175762 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.07591625 0.0 0.1518325 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0