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

        vin |
character(8 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         12        0.12        0.12
          0 |        221        2.21        2.33
          1 |        710        7.10        9.43
          2 |        271        2.71       12.14
          3 |        378        3.78       15.92
          4 |        333        3.33       19.25
          5 |        427        4.27       23.52
          6 |        275        2.75       26.27
          7 |        186        1.86       28.13
          8 |        158        1.58       29.71
          9 |        408        4.08       33.79
          A |        377        3.77       37.56
          B |        235        2.35       39.91
          C |        322        3.22       43.13
          D |        339        3.39       46.52
          E |        636        6.36       52.88
          F |        249        2.49       55.37
          G |        239        2.39       57.76
          H |        173        1.73       59.49
          J |        142        1.42       60.91
          K |        506        5.06       65.97
          L |        212        2.12       68.09
          M |        118        1.18       69.27
          N |        306        3.06       72.33
          P |        234        2.34       74.67
          R |        346        3.46       78.13
          S |        270        2.70       80.83
          T |        297        2.97       83.80
          U |        271        2.71       86.51
          V |        225        2.25       88.76
          W |        368        3.68       92.44
          X |        381        3.81       96.25
          Y |        217        2.17       98.42
          Z |        158        1.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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