condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0664585 0.0664585 0.0664585 ZT8-11 0.36044299999999996 0.36044299999999996 0.36044299999999996 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0