condition mean min max ZT0-3 79.46466810000001 73.83463574000001 85.09470046 ZT4-7 92.5553091525 65.181383575 119.92923473 ZT8-11 136.15458080000002 130.28487895 142.02428265 ZT12-15 46.07301694750001 22.11923228 70.02680161500001 ZT16-19 47.5801178575 37.89816738 57.262068334999995 ZT20-23 83.1477257925 80.415288885 85.8801627