condition mean min max ZT0-3 87.83557396500001 60.89327045 114.77787748000001 ZT4-7 130.51108755 123.14059624999999 137.88157885 ZT8-11 107.94635170750001 102.20639182000001 113.686311595 ZT12-15 106.42135476749999 101.51288092499999 111.32982860999999 ZT16-19 116.246852575 110.33821900000001 122.15548615 ZT20-23 83.9385747825 80.46106582499999 87.41608374