condition mean min max ZT0-3 0.007398166666666667 0.007398166666666667 0.007398166666666667 ZT4-7 0.015356300000000002 0.015356300000000002 0.015356300000000002 ZT8-11 0.018157700000000002 0.018157700000000002 0.018157700000000002 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0