condition mean min max ZT0-3 0.10830366666666667 0.0 0.324911 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.1505275 0.1505275 0.1505275 ZT20-23 0.0 0.0 0.0