condition mean min max ZT0-3 9.89310685575 9.3673460015 10.41886771 ZT4-7 8.9907814195 7.889930377 10.091632462 ZT8-11 11.027813285 8.999290989999999 13.05633558 ZT12-15 93.96298923750001 91.04763926500002 96.87833921000001 ZT16-19 63.062345717499994 57.622447429999994 68.502244005 ZT20-23 39.2208586225 34.369874525 44.07184272