condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.011178830166666666 0.0 0.02235766033333333 ZT8-11 0.0 0.0 0.0 ZT12-15 0.012414419000000001 0.0 0.024828838000000002 ZT16-19 0.012305164 0.0 0.024610328 ZT20-23 0.0 0.0 0.0