condition mean min max ZT0-3 117.52058333333333 117.52058333333333 117.52058333333333 ZT4-7 92.8915 92.8915 92.8915 ZT8-11 88.71255 88.71255 88.71255 ZT12-15 94.60000000000001 94.60000000000001 94.60000000000001 ZT16-19 126.9944 126.9944 126.9944 ZT20-23 117.2955 117.2955 117.2955