condition mean min max ZT0-3 0.0026164735 0.0 0.005232947 ZT4-7 0.00456730275 0.0 0.0091346055 ZT8-11 0.027590553000000004 0.021114799 0.034066307000000004 ZT12-15 0.011315091499999999 0.0099176945 0.0127124885 ZT16-19 0.01037806925 0.009558901 0.0111972375 ZT20-23 0.01834560425 0.0088847975 0.027806411