condition mean min max ZT0-3 104.305721 104.305721 104.305721 ZT4-7 115.93606399999999 115.93606399999999 115.93606399999999 ZT8-11 106.6452565 106.6452565 106.6452565 ZT12-15 109.934866 109.934866 109.934866 ZT16-19 110.420694 110.420694 110.420694 ZT20-23 138.6335825 138.6335825 138.6335825