condition mean min max ZT0-3 6513.5 6513.5 6513.5 ZT4-7 5129.9 5129.9 5129.9 ZT8-11 5106.9 5106.9 5106.9 ZT12-15 4992.55 4992.55 4992.55 ZT16-19 5465.0 5465.0 5465.0 ZT20-23 6379.799999999999 6379.799999999999 6379.799999999999