condition mean min max ZT0-3 2808.2 2808.2 2808.2 ZT4-7 2235.0 2235.0 2235.0 ZT8-11 2060.4 2060.4 2060.4 ZT12-15 1904.4 1904.4 1904.4 ZT16-19 2248.15 2248.15 2248.15 ZT20-23 2502.25 2502.25 2502.25