condition mean min max ZT0-3 1297.45 1297.45 1297.45 ZT4-7 1636.6 1636.6 1636.6 ZT8-11 2035.2 2035.2 2035.2 ZT12-15 2131.35 2131.35 2131.35 ZT16-19 2047.65 2047.65 2047.65 ZT20-23 1650.85 1650.85 1650.85