condition mean min max ZT0-3 126.97804905000001 111.86616059999999 142.08993750000002 ZT4-7 114.0453570775 93.13837540499999 134.95233875000002 ZT8-11 55.966094365000004 51.283244035 60.648944695 ZT12-15 63.01167993000001 44.094952770000006 81.92840709000001 ZT16-19 119.287338 117.18411005 121.39056595000001 ZT20-23 131.64552392500002 123.19842120000001 140.09262665