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

     vin_10 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,244       12.44       12.44
          0 |      4,114       41.14       53.58
          1 |        337        3.37       56.95
          2 |        371        3.71       60.66
          3 |        369        3.69       64.35
          4 |        377        3.77       68.12
          5 |        323        3.23       71.35
          6 |        316        3.16       74.51
          7 |        343        3.43       77.94
          8 |        336        3.36       81.30
          9 |      1,856       18.56       99.86
          A |          8        0.08       99.94
          C |          3        0.03       99.97
          F |          1        0.01       99.98
          L |          1        0.01       99.99
          O |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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