condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0092818105 0.0 0.018563621 ZT8-11 0.04995556716666667 0.045092821000000005 0.054818313333333334 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0290393645 0.014952578000000001 0.043126151 ZT20-23 0.0 0.0 0.0