condition mean min max ZT0-3 66.65 66.65 66.65 ZT4-7 140.9 140.9 140.9 ZT8-11 119.6 119.6 119.6 ZT12-15 140.15 140.15 140.15 ZT16-19 138.7 138.7 138.7 ZT20-23 97.65 97.65 97.65