condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 1.43422 1.43422 1.43422 ZT8-11 2.71827 2.71827 2.71827 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 1.853885 1.853885 1.853885