condition mean min max ZT0-3 0.4377775 0.4377775 0.4377775 ZT4-7 0.512985 0.512985 0.512985 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 0.2223355 0.2223355 0.2223355