condition mean min max ZT0-3 0.07151925 0.06182555 0.08114435 ZT4-7 0.058011999999999994 0.058011999999999994 0.058011999999999994 ZT8-11 0.07248865 0.07248865 0.07248865 ZT12-15 0.07999094999999999 0.06831999999999999 0.09166189999999999 ZT16-19 0.07072015 0.07072015 0.07072015 ZT20-23 0.0105068 0.0105068 0.0105068