condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0314305 0.0314305 0.0314305 ZT8-11 0.01542845 0.01542845 0.01542845 ZT12-15 0.042497 0.042497 0.042497 ZT16-19 0.0088912 0.0088912 0.0088912 ZT20-23 0.0 0.0 0.0