condition mean min max ZT0-3 59.786862275 31.35759903 88.21612551999999 ZT4-7 325.553852625 217.89799155000003 433.2097137 ZT8-11 698.605857825 548.7999035 848.4118121500001 ZT12-15 335.81541905250003 130.247879905 541.3829582000001 ZT16-19 41.57807429 28.889114345000003 54.267034235 ZT20-23 9.66714938 5.954065344999999 13.380233415