condition mean min max ZT0-3 21.918004500000002 0.0 65.5147 ZT4-7 3.144635 3.144635 3.144635 ZT8-11 0.1153265 0.1153265 0.1153265 ZT12-15 1.19123075 0.115405 2.2670565 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0