condition mean min max ZT0-3 0.017037675 0.0 0.03407535 ZT4-7 0.0187449 0.0187449 0.0187449 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 0 0 0