condition mean min max ZT0-3 0.014117983333333334 0.0 0.04235395 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.06741697499999999 0.0 0.13483394999999998 ZT16-19 0.0411529 0.0411529 0.0411529 ZT20-23 0.0 0.0 0.0