Frequencies for vin_7 variable in vehnit dataset :

      vin_7 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.08        0.08
          0 |         54        4.07        4.14
          1 |        143       10.77       14.91
          2 |        208       15.66       30.57
          3 |        131        9.86       40.44
          4 |        146       10.99       51.43
          5 |        111        8.36       59.79
          6 |        101        7.61       67.39
          7 |         64        4.82       72.21
          8 |        106        7.98       80.20
          9 |        139       10.47       90.66
          A |         23        1.73       92.39
          B |          9        0.68       93.07
          C |         13        0.98       94.05
          D |          8        0.60       94.65
          E |          8        0.60       95.26
          F |          2        0.15       95.41
          G |          3        0.23       95.63
          H |          1        0.08       95.71
          J |          5        0.38       96.08
          K |          2        0.15       96.23
          M |          1        0.08       96.31
          N |          1        0.08       96.39
          P |          6        0.45       96.84
          R |          3        0.23       97.06
          S |          6        0.45       97.52
          T |          5        0.38       97.89
          U |          2        0.15       98.04
          W |          3        0.23       98.27
          X |          2        0.15       98.42
          Y |         13        0.98       99.40
          Z |          8        0.60      100.00
------------+-----------------------------------
      Total |      1,328      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016