Frequencies for first 10,000 rows of vin_10 variable in vehicle dataset :

        vin |
character(1 |
         0) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         39        0.39        0.39
          0 |         23        0.23        0.62
          1 |        553        5.53        6.15
          2 |        529        5.29       11.44
          3 |        644        6.44       17.88
          4 |        594        5.94       23.82
          5 |        621        6.21       30.03
          6 |        680        6.80       36.83
          7 |        640        6.40       43.23
          8 |        485        4.85       48.08
          9 |        671        6.71       54.79
          A |        321        3.21       58.00
          B |        351        3.51       61.51
          C |        475        4.75       66.26
          D |        370        3.70       69.96
          E |         53        0.53       70.49
          F |         23        0.23       70.72
          G |         36        0.36       71.08
          H |         28        0.28       71.36
          J |         58        0.58       71.94
          K |         74        0.74       72.68
          L |         68        0.68       73.36
          M |         93        0.93       74.29
          N |        101        1.01       75.30
          P |        138        1.38       76.68
          R |        186        1.86       78.54
          S |        231        2.31       80.85
          T |        262        2.62       83.47
          V |        328        3.28       86.75
          W |        360        3.60       90.35
          X |        413        4.13       94.48
          Y |        552        5.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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