condition mean min max ZT0-3 147.65 147.65 147.65 ZT4-7 149.3 149.3 149.3 ZT8-11 107.65 107.65 107.65 ZT12-15 138.8 138.8 138.8 ZT16-19 157.7 157.7 157.7 ZT20-23 178.7 178.7 178.7