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

     vin_10 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      5,917       59.17       59.17
          0 |         10        0.10       59.27
          6 |          1        0.01       59.28
          9 |        693        6.93       66.21
          A |          9        0.09       66.30
          B |        503        5.03       71.33
          C |        634        6.34       77.67
          D |        616        6.16       83.83
          E |        871        8.71       92.54
          F |        698        6.98       99.52
          G |         48        0.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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