condition mean min max ZT0-3 2342.9 2342.9 2342.9 ZT4-7 1507.5 1507.5 1507.5 ZT8-11 1529.9 1529.9 1529.9 ZT12-15 1607.75 1607.75 1607.75 ZT16-19 1912.9 1912.9 1912.9 ZT20-23 2552.7 2552.7 2552.7