condition mean min max ZT0-3 0.031814999999999996 0.031814999999999996 0.031814999999999996 ZT4-7 0.01487005 0.01487005 0.01487005 ZT8-11 0.01623935 0.01623935 0.01623935 ZT12-15 0.0 0.0 0.0 ZT16-19 0.039600833333333335 0.039600833333333335 0.039600833333333335 ZT20-23 0.0099016 0.0099016 0.0099016