condition mean min max ZT0-3 12.386985898749998 2.474256149 22.299715648499998 ZT4-7 61.3627319725 54.22209745 68.503366495 ZT8-11 91.1341833575 89.15680055499999 93.11156616000001 ZT12-15 141.78646625749997 140.708772515 142.86415999999997 ZT16-19 110.4763110675 101.02586708500002 119.92675505 ZT20-23 68.745149745 58.339944179999996 79.15035531000001