condition mean min max ZT0-3 2098.95 2098.95 2098.95 ZT4-7 2075.9 2075.9 2075.9 ZT8-11 1945.5 1945.5 1945.5 ZT12-15 1869.6 1869.6 1869.6 ZT16-19 2057.85 2057.85 2057.85 ZT20-23 2357.6499999999996 2357.6499999999996 2357.6499999999996