condition mean min max ZT0-3 1737.85 1737.85 1737.85 ZT4-7 1812.7 1812.7 1812.7 ZT8-11 1635.75 1635.75 1635.75 ZT12-15 2346.1000000000004 2346.1000000000004 2346.1000000000004 ZT16-19 3207.8 3207.8 3207.8 ZT20-23 1832.15 1832.15 1832.15