condition mean min max ZT0-3 44.96777778 44.96777778 44.96777778 ZT4-7 22.38 22.38 22.38 ZT8-11 24.802222219999997 24.802222219999997 24.802222219999997 ZT12-15 83.94888887666667 83.94888887666667 83.94888887666667 ZT16-19 110.68888888000001 110.68888888000001 110.68888888000001 ZT20-23 85.16222223333332 85.16222223333332 85.16222223333332