condition mean min max ZT0-3 1285.8 1285.8 1285.8 ZT4-7 1734.4 1734.4 1734.4 ZT8-11 1473.85 1473.85 1473.85 ZT12-15 1515.65 1515.65 1515.65 ZT16-19 1511.65 1511.65 1511.65 ZT20-23 1228.85 1228.85 1228.85