Frequencies for vin_6 variable in vehnit dataset :

      vin_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.07        0.07
          0 |         59        3.98        4.05
          1 |        336       22.69       26.74
          2 |        164       11.07       37.81
          3 |        153       10.33       48.14
          4 |         91        6.14       54.29
          5 |        206       13.91       68.20
          6 |         81        5.47       73.67
          7 |         61        4.12       77.79
          8 |         34        2.30       80.08
          9 |        127        8.58       88.66
          A |         35        2.36       91.02
          B |         26        1.76       92.78
          C |          9        0.61       93.38
          D |          7        0.47       93.86
          E |          4        0.27       94.13
          F |          4        0.27       94.40
          G |          2        0.14       94.53
          H |          8        0.54       95.07
          J |          1        0.07       95.14
          L |          4        0.27       95.41
          M |          4        0.27       95.68
          N |          2        0.14       95.81
          P |          6        0.41       96.22
          Q |          2        0.14       96.35
          R |          9        0.61       96.96
          S |         22        1.49       98.45
          T |          2        0.14       98.58
          U |          1        0.07       98.65
          V |          1        0.07       98.72
          W |          1        0.07       98.78
          X |          5        0.34       99.12
          Z |         13        0.88      100.00
------------+-----------------------------------
      Total |      1,481      100.00

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