condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.11424603500000001 0.0 0.22849207000000002 ZT8-11 0.0531208245 0.0 0.106241649 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0