condition mean min max ZT0-3 0.23345102433333337 0.10341285166666668 0.36348919700000004 ZT4-7 0.0 0.0 0.0 ZT8-11 0.1097588455 0.0 0.219517691 ZT12-15 0.0 0.0 0.0 ZT16-19 0.09795780700000001 0.0 0.19591561400000002 ZT20-23 0.0 0.0 0.0