Frequencies for first 10,000 rows of vin_8 variable in vehicle dataset :

        vin |
character(8 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          9        0.09        0.09
          0 |        244        2.44        2.53
          1 |        628        6.28        8.81
          2 |        257        2.57       11.38
          3 |        418        4.18       15.56
          4 |        282        2.82       18.38
          5 |        439        4.39       22.77
          6 |        248        2.48       25.25
          7 |        214        2.14       27.39
          8 |        168        1.68       29.07
          9 |        546        5.46       34.53
          A |        347        3.47       38.00
          B |        264        2.64       40.64
          C |        326        3.26       43.90
          D |        296        2.96       46.86
          E |        610        6.10       52.96
          F |        251        2.51       55.47
          G |        240        2.40       57.87
          H |        169        1.69       59.56
          J |        145        1.45       61.01
          K |        490        4.90       65.91
          L |        224        2.24       68.15
          M |         85        0.85       69.00
          N |        306        3.06       72.06
          P |        304        3.04       75.10
          R |        307        3.07       78.17
          S |        238        2.38       80.55
          T |        345        3.45       84.00
          U |        293        2.93       86.93
          V |        265        2.65       89.58
          W |        321        3.21       92.79
          X |        374        3.74       96.53
          Y |        215        2.15       98.68
          Z |        132        1.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016