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

      vin_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          9        0.09        0.09
          0 |        422        4.22        4.31
          1 |      2,485       24.85       29.16
          2 |      1,267       12.67       41.83
          3 |        869        8.69       50.52
          4 |        665        6.65       57.17
          5 |      1,333       13.33       70.50
          6 |        587        5.87       76.37
          7 |        405        4.05       80.42
          8 |        372        3.72       84.14
          9 |        591        5.91       90.05
          A |        154        1.54       91.59
          B |        130        1.30       92.89
          C |         73        0.73       93.62
          D |         61        0.61       94.23
          E |         56        0.56       94.79
          F |         17        0.17       94.96
          G |         31        0.31       95.27
          H |         47        0.47       95.74
          J |         37        0.37       96.11
          K |         24        0.24       96.35
          L |         33        0.33       96.68
          M |         43        0.43       97.11
          N |         14        0.14       97.25
          O |          2        0.02       97.27
          P |         24        0.24       97.51
          R |         45        0.45       97.96
          S |         77        0.77       98.73
          T |         12        0.12       98.85
          U |         16        0.16       99.01
          V |          8        0.08       99.09
          W |         10        0.10       99.19
          X |         20        0.20       99.39
          Y |          9        0.09       99.48
          Z |         51        0.51       99.99
          g |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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