condition mean min max ZT0-3 0.3881168185 0.37627835299999995 0.399955284 ZT4-7 0.5801470285 0.225155814 0.9351382429999999 ZT8-11 1.05106313 0.9679036489999999 1.134222611 ZT12-15 0.4590469645 0.3588688175 0.5592251115 ZT16-19 0.21768903499999998 0.188392706 0.24698536399999999 ZT20-23 0.18925421799999997 0.161646818 0.21686161799999998