condition mean min max ZT0-3 0.16696395741666667 0.1061848275 0.22774308733333334 ZT4-7 0.13433562149999997 0.0 0.26867124299999995 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0