condition mean min max ZT0-3 1618.75 1618.75 1618.75 ZT4-7 717.1 717.1 717.1 ZT8-11 759.35 759.35 759.35 ZT12-15 1042.55 1042.55 1042.55 ZT16-19 1398.45 1398.45 1398.45 ZT20-23 1802.45 1802.45 1802.45