condition mean min max ZT0-3 1685.95 1685.95 1685.95 ZT4-7 1483.4 1483.4 1483.4 ZT8-11 1564.6 1564.6 1564.6 ZT12-15 1320.45 1320.45 1320.45 ZT16-19 1729.05 1729.05 1729.05 ZT20-23 1819.85 1819.85 1819.85