condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.020107299999999998 0.020107299999999998 0.020107299999999998 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.03127133333333333 0.0 0.06254266666666666 ZT20-23 0 0 0