condition mean min max ZT0-3 0.82755 0.82755 0.82755 ZT4-7 0.96972 0.96972 0.96972 ZT8-11 0.0 0.0 0.0 ZT12-15 1.9191 1.9191 1.9191 ZT16-19 0.850815 0.850815 0.850815 ZT20-23 0.0 0.0 0.0