condition mean min max ZT0-3 1899.15 1899.15 1899.15 ZT4-7 1826.3 1826.3 1826.3 ZT8-11 1815.35 1815.35 1815.35 ZT12-15 1694.5500000000002 1694.5500000000002 1694.5500000000002 ZT16-19 1720.9 1720.9 1720.9 ZT20-23 1914.25 1914.25 1914.25