condition mean min max ZT0-3 0.10544075 0.0 0.2108815 ZT4-7 0.0 0.0 0.0 ZT8-11 0.4271355 0.4271355 0.4271355 ZT12-15 0 0 0 ZT16-19 0.425694 0.425694 0.425694 ZT20-23 0.42699699999999996 0.42699699999999996 0.42699699999999996