condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0048676282500000004 0.0 0.009735256500000001 ZT12-15 0.03077615175 0.009946291999999999 0.0516060115 ZT16-19 0.08351280200000001 0.0187808945 0.14824470950000002 ZT20-23 0.431182007 0.36603993999999995 0.496324074