condition mean min max ZT0-3 1557.15 1557.15 1557.15 ZT4-7 1586.0 1586.0 1586.0 ZT8-11 1623.15 1623.15 1623.15 ZT12-15 1792.5 1792.5 1792.5 ZT16-19 1626.65 1626.65 1626.65 ZT20-23 1357.5 1357.5 1357.5