condition mean min max ZT0-3 349.8 349.8 349.8 ZT4-7 472.4 472.4 472.4 ZT8-11 420.9 420.9 420.9 ZT12-15 459.9 459.9 459.9 ZT16-19 483.7 483.7 483.7 ZT20-23 440.8 440.8 440.8