condition mean min max ZT0-3 0.61010125 0.570366 0.6498365 ZT4-7 1.006846 1.006846 1.006846 ZT8-11 0.395246 0.395246 0.395246 ZT12-15 0 0 0 ZT16-19 0.948477 0.948477 0.948477 ZT20-23 0.910795 0.910795 0.910795