Frequencies for first 10,000 rows of vin_6 variable in vehicle dataset :

      vin_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          6        0.06        0.06
          0 |        366        3.66        3.72
          1 |      2,440       24.40       28.12
          2 |      1,243       12.43       40.55
          3 |        873        8.73       49.28
          4 |        671        6.71       55.99
          5 |      1,368       13.68       69.67
          6 |        565        5.65       75.32
          7 |        422        4.22       79.54
          8 |        417        4.17       83.71
          9 |        641        6.41       90.12
          A |        158        1.58       91.70
          B |        141        1.41       93.11
          C |         92        0.92       94.03
          D |         55        0.55       94.58
          E |         41        0.41       94.99
          F |         31        0.31       95.30
          G |         39        0.39       95.69
          H |         54        0.54       96.23
          J |         25        0.25       96.48
          K |         20        0.20       96.68
          L |         35        0.35       97.03
          M |         55        0.55       97.58
          N |          9        0.09       97.67
          O |          2        0.02       97.69
          P |         19        0.19       97.88
          Q |          1        0.01       97.89
          R |         39        0.39       98.28
          S |         48        0.48       98.76
          T |         18        0.18       98.94
          U |         21        0.21       99.15
          V |          4        0.04       99.19
          W |          8        0.08       99.27
          X |         23        0.23       99.50
          Y |          5        0.05       99.55
          Z |         45        0.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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