condition mean min max ZT0-3 282.75 282.75 282.75 ZT4-7 580.7 580.7 580.7 ZT8-11 508.9 508.9 508.9 ZT12-15 349.15 349.15 349.15 ZT16-19 323.2 323.2 323.2 ZT20-23 288.0 288.0 288.0