condition mean min max ZT0-3 2198.05 2198.05 2198.05 ZT4-7 1429.6 1429.6 1429.6 ZT8-11 1645.75 1645.75 1645.75 ZT12-15 1843.75 1843.75 1843.75 ZT16-19 1988.4 1988.4 1988.4 ZT20-23 2093.9 2093.9 2093.9