condition mean min max ZT0-3 0.114196 0.114196 0.114196 ZT4-7 0.0 0.0 0.0 ZT8-11 0.30158549999999995 0.30158549999999995 0.30158549999999995 ZT12-15 0.5751835 0.5751835 0.5751835 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0