Frequencies for first 10,000 rows of vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         54        0.54        0.54
          1 |         31        0.31        0.85
          2 |         25        0.25        1.10
          3 |         16        0.16        1.26
          4 |         33        0.33        1.59
          5 |         17        0.17        1.76
          6 |         13        0.13        1.89
          7 |         22        0.22        2.11
          8 |          7        0.07        2.18
          9 |        289        2.89        5.07
          A |        642        6.42       11.49
          B |        434        4.34       15.83
          C |        901        9.01       24.84
          D |        629        6.29       31.13
          E |        371        3.71       34.84
          F |        524        5.24       40.08
          G |        371        3.71       43.79
          H |        160        1.60       45.39
          J |        279        2.79       48.18
          K |        608        6.08       54.26
          L |        347        3.47       57.73
          M |        365        3.65       61.38
          N |        359        3.59       64.97
          P |        719        7.19       72.16
          R |        407        4.07       76.23
          S |        499        4.99       81.22
          T |        318        3.18       84.40
          U |        576        5.76       90.16
          V |        110        1.10       91.26
          W |        267        2.67       93.93
          X |        373        3.73       97.66
          Y |        128        1.28       98.94
          Z |        106        1.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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