condition mean min max ZT0-3 8808.1 8808.1 8808.1 ZT4-7 8314.8 8314.8 8314.8 ZT8-11 8473.75 8473.75 8473.75 ZT12-15 7304.15 7304.15 7304.15 ZT16-19 7790.799999999999 7790.799999999999 7790.799999999999 ZT20-23 8694.95 8694.95 8694.95