condition mean min max ZT0-3 1903.4499999999998 1903.4499999999998 1903.4499999999998 ZT4-7 1613.7 1613.7 1613.7 ZT8-11 1557.75 1557.75 1557.75 ZT12-15 1345.55 1345.55 1345.55 ZT16-19 1644.35 1644.35 1644.35 ZT20-23 1711.35 1711.35 1711.35