alcohol  chlorides  citric acid   density  fixed acidity  free sulfur dioxide    pH  residual sugar  sulphates  total sulfur dioxide  volatile acidity
quality
3          9.925     0.0905        0.035  0.997565           7.50                  6.0  3.39             2.1      0.545                  15.0             0.845
4         10.000     0.0800        0.090  0.996500           7.50                 11.0  3.37             2.1      0.560                  26.0             0.670
5          9.700     0.0810        0.230  0.997000           7.80                 15.0  3.30             2.2      0.580                  47.0             0.580
6         10.500     0.0780        0.260  0.996560           7.90                 14.0  3.32             2.2      0.640                  35.0             0.490
7         11.500     0.0730        0.400  0.995770           8.80                 11.0  3.28             2.3      0.740                  27.0             0.370
8         12.150     0.0705        0.420  0.994940           8.25                  7.5  3.23             2.1      0.740                  21.5             0.370