condition mean min max ZT0-3 164.85000000000002 164.85000000000002 164.85000000000002 ZT4-7 126.5 126.5 126.5 ZT8-11 165.0 165.0 165.0 ZT12-15 144.85 144.85 144.85 ZT16-19 163.45 163.45 163.45 ZT20-23 186.7 186.7 186.7