condition mean min max ZT0-3 108.04533333333333 108.04533333333333 108.04533333333333 ZT4-7 125.544 125.544 125.544 ZT8-11 98.7339 98.7339 98.7339 ZT12-15 72.78485 72.78485 72.78485 ZT16-19 61.068799999999996 61.068799999999996 61.068799999999996 ZT20-23 80.49680000000001 80.49680000000001 80.49680000000001