condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.4155083765 0.0 0.831016753 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.10031150250000001 0.06392668366666666 0.13669632133333334 ZT20-23 0.0 0.0 0.0