condition mean min max ZT0-3 1697.15 1697.15 1697.15 ZT4-7 2299.7 2299.7 2299.7 ZT8-11 1901.4 1901.4 1901.4 ZT12-15 2080.2 2080.2 2080.2 ZT16-19 2000.0 2000.0 2000.0 ZT20-23 1892.9 1892.9 1892.9