condition mean min max ZT0-3 1820.25 1820.25 1820.25 ZT4-7 1801.7 1801.7 1801.7 ZT8-11 1677.3 1677.3 1677.3 ZT12-15 1598.85 1598.85 1598.85 ZT16-19 1644.85 1644.85 1644.85 ZT20-23 1746.9 1746.9 1746.9