condition mean min max ZT0-3 1267.85 1267.85 1267.85 ZT4-7 1616.1 1616.1 1616.1 ZT8-11 1599.75 1599.75 1599.75 ZT12-15 1484.05 1484.05 1484.05 ZT16-19 1618.4 1618.4 1618.4 ZT20-23 1700.9499999999998 1700.9499999999998 1700.9499999999998