condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0613395 0.0613395 0.0613395 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0582875 0.0582875 0.0582875 ZT20-23 0.0 0.0 0.0