condition mean min max ZT0-3 1054.15 1054.15 1054.15 ZT4-7 863.7 863.7 863.7 ZT8-11 844.7 844.7 844.7 ZT12-15 1351.9 1351.9 1351.9 ZT16-19 1606.65 1606.65 1606.65 ZT20-23 1345.4499999999998 1345.4499999999998 1345.4499999999998