condition mean min max ZT0-3 52.011059044999996 45.10171879 58.9203993 ZT4-7 45.97109553833333 40.65272840666667 51.28946267 ZT8-11 64.74238776166666 50.577518 78.90725752333333 ZT12-15 122.61329824666669 106.02047656 139.20611993333335 ZT16-19 140.21788705 135.253735 145.1820391 ZT20-23 139.87052285 121.90534353333332 157.83570216666666