condition mean min max ZT0-3 1.058915 1.058915 1.058915 ZT4-7 0.673655 0.673655 0.673655 ZT8-11 0.0 0.0 0.0 ZT12-15 0.4420965 0.4420965 0.4420965 ZT16-19 0.0 0.0 0.0 ZT20-23 0.1459855 0.1459855 0.1459855