condition mean min max ZT0-3 110.02155301500001 87.8453552 132.19775083000002 ZT4-7 143.05553355 136.25007115 149.86099595000002 ZT8-11 97.98210582499999 82.121198165 113.843013485 ZT12-15 35.992549515 26.048256685 45.936842345 ZT16-19 37.9277043375 35.712456635 40.14295204 ZT20-23 28.569435249999998 23.486012085 33.652858415