condition mean min max ZT0-3 92.55 92.55 92.55 ZT4-7 131.4 131.4 131.4 ZT8-11 140.35000000000002 140.35000000000002 140.35000000000002 ZT12-15 125.39999999999999 125.39999999999999 125.39999999999999 ZT16-19 131.05 131.05 131.05 ZT20-23 103.0 103.0 103.0