condition mean min max ZT0-3 113.7425 113.105 114.38 ZT4-7 97.5255 97.5255 97.5255 ZT8-11 97.401 97.401 97.401 ZT12-15 122.6040375 108.105075 137.103 ZT16-19 142.91833333333335 132.58166666666668 153.255 ZT20-23 0 0 0