condition mean min max ZT0-3 78.55 78.55 78.55 ZT4-7 74.9 74.9 74.9 ZT8-11 38.1 38.1 38.1 ZT12-15 100.44999999999999 100.44999999999999 100.44999999999999 ZT16-19 118.25 118.25 118.25 ZT20-23 125.45 125.45 125.45