condition mean min max ZT0-3 1331.1 1331.1 1331.1 ZT4-7 1584.0 1584.0 1584.0 ZT8-11 1662.45 1662.45 1662.45 ZT12-15 1962.2 1962.2 1962.2 ZT16-19 2128.2 2128.2 2128.2 ZT20-23 1676.7 1676.7 1676.7