condition mean min max ZT0-3 320.04532689999996 293.6846526 346.4060012 ZT4-7 171.92373172499998 169.81728594999998 174.03017749999998 ZT8-11 176.593283175 156.33235105 196.8542153 ZT12-15 135.8608672 120.86556869999998 150.85616570000002 ZT16-19 146.439393825 138.55733329999998 154.32145435 ZT20-23 93.1312122875 81.319866295 104.94255828