condition mean min max ZT0-3 88.0 88.0 88.0 ZT4-7 57.3 57.3 57.3 ZT8-11 69.25 69.25 69.25 ZT12-15 67.1 67.1 67.1 ZT16-19 83.45 83.45 83.45 ZT20-23 51.800000000000004 51.800000000000004 51.800000000000004