condition mean min max ZT0-3 1596.95 1596.95 1596.95 ZT4-7 1289.2 1289.2 1289.2 ZT8-11 1419.15 1419.15 1419.15 ZT12-15 1607.15 1607.15 1607.15 ZT16-19 1846.2 1846.2 1846.2 ZT20-23 1748.9 1748.9 1748.9