condition mean min max ZT0-3 777.55058 777.55058 777.55058 ZT4-7 735.3207305000001 735.3207305000001 735.3207305000001 ZT8-11 867.2279605 867.2279605 867.2279605 ZT12-15 865.492427 865.492427 865.492427 ZT16-19 777.1923545 777.1923545 777.1923545 ZT20-23 779.495941 779.495941 779.495941