condition mean min max ZT0-3 0.0265286005 0.0 0.053057201 ZT4-7 0.0 0.0 0.0 ZT8-11 0.03459344566666666 0.0 0.06918689133333332 ZT12-15 0.0377608995 0.0 0.075521799 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0