condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.08526 0.08526 0.08526 ZT8-11 0.25314000000000003 0.25314000000000003 0.25314000000000003 ZT12-15 0 0 0 ZT16-19 0.1646865 0.1646865 0.1646865 ZT20-23 0.0 0.0 0.0