condition mean min max ZT0-3 0.023183250000000002 0.0 0.05631905 ZT4-7 0.02526635 0.02526635 0.02526635 ZT8-11 0.01325935 0.01325935 0.01325935 ZT12-15 0.0 0.0 0.0 ZT16-19 0.012387 0.012387 0.012387 ZT20-23 0.014496 0.014496 0.014496