condition mean min max ZT0-3 1.1138483333333333e-07 0.0 3.341545e-07 ZT4-7 0.000738745 0.000738745 0.000738745 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.003198305 0.003198305 0.003198305