condition mean min max ZT0-3 1866.35 1866.35 1866.35 ZT4-7 2412.8 2412.8 2412.8 ZT8-11 2366.95 2366.95 2366.95 ZT12-15 2820.4 2820.4 2820.4 ZT16-19 2685.4 2685.4 2685.4 ZT20-23 2270.8 2270.8 2270.8