condition mean min max ZT0-3 1863.15 1863.15 1863.15 ZT4-7 2149.1 2149.1 2149.1 ZT8-11 2179.55 2179.55 2179.55 ZT12-15 2362.85 2362.85 2362.85 ZT16-19 2288.9 2288.9 2288.9 ZT20-23 1852.05 1852.05 1852.05