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

     vin_10 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,738       67.38       67.38
          0 |         15        0.15       67.53
          1 |          1        0.01       67.54
          3 |          1        0.01       67.55
          5 |          2        0.02       67.57
          9 |        712        7.12       74.69
          A |          9        0.09       74.78
          B |        540        5.40       80.18
          C |        669        6.69       86.87
          D |        647        6.47       93.34
          E |        634        6.34       99.68
          F |         32        0.32      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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