condition mean min max ZT0-3 6.777223702 2.3640170130000002 11.190430391 ZT4-7 28.855254197500003 22.28602044 35.424487955000004 ZT8-11 62.7591043525 37.83405257 87.68415613500001 ZT12-15 99.5566087675 93.89857476 105.21464277499999 ZT16-19 79.56493152499999 74.344038865 84.785824185 ZT20-23 81.38875462749999 72.04781715 90.729692105