condition mean min max ZT0-3 393.25 393.25 393.25 ZT4-7 334.1 334.1 334.1 ZT8-11 444.7 444.7 444.7 ZT12-15 483.75 483.75 483.75 ZT16-19 466.45 466.45 466.45 ZT20-23 369.70000000000005 369.70000000000005 369.70000000000005