condition mean min max ZT0-3 4983.85 4983.85 4983.85 ZT4-7 6205.6 6205.6 6205.6 ZT8-11 6212.3 6212.3 6212.3 ZT12-15 6034.55 6034.55 6034.55 ZT16-19 5574.8 5574.8 5574.8 ZT20-23 5579.65 5579.65 5579.65