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

     vin_10 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        896        8.96        8.96
          0 |      1,693       16.93       25.89
          1 |        713        7.13       33.02
          2 |        695        6.95       39.97
          3 |        701        7.01       46.98
          4 |        748        7.48       54.46
          5 |        681        6.81       61.27
          6 |        662        6.62       67.89
          7 |        646        6.46       74.35
          8 |        671        6.71       81.06
          9 |      1,416       14.16       95.22
          A |         29        0.29       95.51
          B |        429        4.29       99.80
          C |         16        0.16       99.96
          L |          1        0.01       99.97
          O |          1        0.01       99.98
          U |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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