condition mean min max ZT0-3 96.69760484583333 90.70205149666667 102.693158195 ZT4-7 80.83873100333334 79.75810383333334 81.91935817333334 ZT8-11 79.501281165 75.61002829 83.39253404 ZT12-15 73.33391198166666 72.28411635333333 74.38370761 ZT16-19 85.54072106000001 81.15480707 89.92663505 ZT20-23 85.412222955 85.23025948666667 85.59418642333334