condition mean min max ZT0-3 79.7325500125 77.775150415 81.68994961 ZT4-7 82.60853496499999 72.67428423666667 92.54278569333333 ZT8-11 92.24534402666667 90.77826320333334 93.71242485 ZT12-15 104.648988285 104.4329826 104.86499397 ZT16-19 89.34980311 77.99399320666667 100.70561301333332 ZT20-23 61.717973228333335 59.165498426666666 64.27044803