condition mean min max ZT0-3 349.75 349.75 349.75 ZT4-7 462.8 462.8 462.8 ZT8-11 530.3 530.3 530.3 ZT12-15 474.8 474.8 474.8 ZT16-19 483.9 483.9 483.9 ZT20-23 356.4 356.4 356.4