condition mean min max ZT0-3 2033.3 2033.3 2033.3 ZT4-7 1754.3 1754.3 1754.3 ZT8-11 1696.4 1696.4 1696.4 ZT12-15 1903.8 1903.8 1903.8 ZT16-19 2258.85 2258.85 2258.85 ZT20-23 2576.4 2576.4 2576.4