condition mean min max ZT0-3 0.0227844 0.0227844 0.0227844 ZT4-7 9.1239e-05 9.1239e-05 9.1239e-05 ZT8-11 0.021834035 0.021834035 0.021834035 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.00135866 0.00135866 0.00135866