condition mean min max ZT0-3 3454.9 3454.9 3454.9 ZT4-7 2733.6 2733.6 2733.6 ZT8-11 2691.85 2691.85 2691.85 ZT12-15 2531.05 2531.05 2531.05 ZT16-19 3103.5 3103.5 3103.5 ZT20-23 3717.65 3717.65 3717.65