condition mean min max ZT0-3 111.39999999999999 111.39999999999999 111.39999999999999 ZT4-7 101.2 101.2 101.2 ZT8-11 122.75 122.75 122.75 ZT12-15 202.8 202.8 202.8 ZT16-19 99.55 99.55 99.55 ZT20-23 113.85 113.85 113.85