condition mean min max ZT0-3 1378.55 1378.55 1378.55 ZT4-7 1268.6 1268.6 1268.6 ZT8-11 1173.85 1173.85 1173.85 ZT12-15 1087.8 1087.8 1087.8 ZT16-19 1382.65 1382.65 1382.65 ZT20-23 1446.35 1446.35 1446.35