condition mean min max ZT0-3 80.0732 80.0732 80.0732 ZT4-7 38.920199999999994 38.920199999999994 38.920199999999994 ZT8-11 34.3406 34.3406 34.3406 ZT12-15 77.54695000000001 77.54695000000001 77.54695000000001 ZT16-19 165.849 165.849 165.849 ZT20-23 143.548 143.548 143.548