condition mean min max ZT0-3 0.9828495 0.8816955 1.0840035000000001 ZT4-7 3.000635 3.000635 3.000635 ZT8-11 7.165179999999999 7.165179999999999 7.165179999999999 ZT12-15 0 0 0 ZT16-19 3.1017 3.1017 3.1017 ZT20-23 2.09976 2.09976 2.09976