condition mean min max ZT0-3 829.15 829.15 829.15 ZT4-7 825.1 825.1 825.1 ZT8-11 1116.6 1116.6 1116.6 ZT12-15 1550.5 1550.5 1550.5 ZT16-19 1697.55 1697.55 1697.55 ZT20-23 1299.5 1299.5 1299.5