condition mean min max ZT0-3 0.038950016000000004 0.0 0.07790003200000001 ZT4-7 0.0168013175 0.0 0.033602635 ZT8-11 0.0 0.0 0.0 ZT12-15 0.017395042333333336 0.0 0.03479008466666667 ZT16-19 0.060963587 0.039724688 0.082202486 ZT20-23 0.0 0.0 0.0