condition mean min max ZT0-3 7540.0 7540.0 7540.0 ZT4-7 7971.4 7971.4 7971.4 ZT8-11 8885.55 8885.55 8885.55 ZT12-15 8729.05 8729.05 8729.05 ZT16-19 8243.2 8243.2 8243.2 ZT20-23 7600.5 7600.5 7600.5