condition mean min max ZT0-3 0.129886075 0.04766065 0.2121115 ZT4-7 0.07127215 0.07127215 0.07127215 ZT8-11 0.02425785 0.02425785 0.02425785 ZT12-15 0 0 0 ZT16-19 0.11711440000000001 0.11711440000000001 0.11711440000000001 ZT20-23 0.11814090000000001 0.11814090000000001 0.11814090000000001