condition mean min max ZT0-3 0.3880933380166667 0.0 1.16426 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 1.5339142895 1.5339142895 1.5339142895