condition mean min max ZT0-3 98.98077500000001 97.93815000000001 100.02340000000001 ZT4-7 39.03165 39.03165 39.03165 ZT8-11 56.44955 56.44955 56.44955 ZT12-15 0 0 0 ZT16-19 179.9385 179.9385 179.9385 ZT20-23 148.8915 148.8915 148.8915