condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.67354 0.67354 0.67354 ZT8-11 0.0 0.0 0.0 ZT12-15 1.343355 1.343355 1.343355 ZT16-19 0.0 0.0 0.0 ZT20-23 0.58322 0.58322 0.58322