condition mean min max ZT0-3 116.96631666666666 97.97444999999999 132.15449999999998 ZT4-7 45.2071 45.2071 45.2071 ZT8-11 56.0583 56.0583 56.0583 ZT12-15 53.102675000000005 52.5058 53.69955 ZT16-19 74.3862 74.3862 74.3862 ZT20-23 79.20840000000001 79.20840000000001 79.20840000000001