condition mean min max ZT0-3 2208.8 2208.8 2208.8 ZT4-7 1942.8 1942.8 1942.8 ZT8-11 1982.15 1982.15 1982.15 ZT12-15 1778.8 1778.8 1778.8 ZT16-19 1740.9 1740.9 1740.9 ZT20-23 2078.0 2078.0 2078.0