condition mean min max ZT0-3 1.89e-06 1.89e-06 1.89e-06 ZT4-7 0.402419 0.402419 0.402419 ZT8-11 0.0314464 0.0314464 0.0314464 ZT12-15 0.5492725 0.5492725 0.5492725 ZT16-19 0.09346700000000001 0.09346700000000001 0.09346700000000001 ZT20-23 0.257046 0.257046 0.257046