condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0227345 0.0227345 0.0227345 ZT8-11 0.09257024999999999 0.09257024999999999 0.09257024999999999 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0