condition mean min max ZT0-3 1329.25 1329.25 1329.25 ZT4-7 1568.5 1568.5 1568.5 ZT8-11 1396.4 1396.4 1396.4 ZT12-15 1724.95 1724.95 1724.95 ZT16-19 1775.25 1775.25 1775.25 ZT20-23 1836.6 1836.6 1836.6