condition mean min max ZT0-3 22.601300000000002 22.601300000000002 22.601300000000002 ZT4-7 26.8952 26.8952 26.8952 ZT8-11 24.7509 24.7509 24.7509 ZT12-15 14.35575 14.35575 14.35575 ZT16-19 14.44755 14.44755 14.44755 ZT20-23 13.992899999999999 13.992899999999999 13.992899999999999