condition mean min max ZT0-3 151.52274999999997 137.43599999999998 165.6095 ZT4-7 52.2375 52.2375 52.2375 ZT8-11 4.918094999999999 4.918094999999999 4.918094999999999 ZT12-15 0 0 0 ZT16-19 25.2684 25.2684 25.2684 ZT20-23 69.0213 69.0213 69.0213