condition mean min max ZT0-3 0.5218990095 0.46362275399999997 0.5801752649999999 ZT4-7 0.23647263 0.176908709 0.296036551 ZT8-11 0.1611434435 0.130622566 0.19166432100000003 ZT12-15 0.42364845900000003 0.245052265 0.6022446530000001 ZT16-19 0.9670245437499999 0.7165351154999999 1.2175139719999999 ZT20-23 2.5748788155 1.9721201775 3.1776374535