condition mean min max ZT0-3 26.9705269125 24.126921795 29.81413203 ZT4-7 32.89552297750001 22.710217550000003 43.080828405000005 ZT8-11 76.8631832275 59.640276279999995 94.08609017500001 ZT12-15 105.92233644999999 103.54729245 108.29738044999999 ZT16-19 82.11772777499999 71.72549606 92.50995949 ZT20-23 58.325515715 54.418516415 62.232515015000004