condition mean min max ZT0-3 1829.75 1829.75 1829.75 ZT4-7 1798.0 1798.0 1798.0 ZT8-11 1859.65 1859.65 1859.65 ZT12-15 1986.15 1986.15 1986.15 ZT16-19 1903.35 1903.35 1903.35 ZT20-23 1893.9 1893.9 1893.9