Frequencies for first 10,000 rows of vin_11 variable in vehicle dataset :

        vin |
character(1 |
         1) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         45        0.45        0.45
          0 |        381        3.81        4.26
          1 |        358        3.58        7.84
          2 |        363        3.63       11.47
          3 |         60        0.60       12.07
          4 |        121        1.21       13.28
          5 |        216        2.16       15.44
          6 |        121        1.21       16.65
          7 |        156        1.56       18.21
          8 |         86        0.86       19.07
          9 |        489        4.89       23.96
          A |        675        6.75       30.71
          B |        286        2.86       33.57
          C |        594        5.94       39.51
          D |        261        2.61       42.12
          E |        338        3.38       45.50
          F |        320        3.20       48.70
          G |        307        3.07       51.77
          H |        445        4.45       56.22
          J |        267        2.67       58.89
          K |        314        3.14       62.03
          L |        451        4.51       66.54
          M |        308        3.08       69.62
          N |        385        3.85       73.47
          P |        208        2.08       75.55
          R |        274        2.74       78.29
          S |        385        3.85       82.14
          T |        170        1.70       83.84
          U |        532        5.32       89.16
          V |         25        0.25       89.41
          W |        166        1.66       91.07
          X |        132        1.32       92.39
          Y |        271        2.71       95.10
          Z |        490        4.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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