condition mean min max ZT0-3 113.9 113.9 113.9 ZT4-7 138.1 138.1 138.1 ZT8-11 144.25 144.25 144.25 ZT12-15 176.85000000000002 176.85000000000002 176.85000000000002 ZT16-19 188.2 188.2 188.2 ZT20-23 133.65 133.65 133.65