condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.7229683333333333 0.7229683333333333 0.7229683333333333 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.34929499999999997 0.34929499999999997 0.34929499999999997 ZT20-23 0.0 0.0 0.0