condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.01774665 0.01774665 0.01774665 ZT8-11 0.0 0.0 0.0 ZT12-15 0.00977505 0.0 0.0195501 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0