Frequencies for first 10,000 rows of vin_8 variable in vehicle dataset :

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        461        4.61        4.61
          0 |      3,268       32.68       37.29
          1 |      2,040       20.40       57.69
          2 |        701        7.01       64.70
          3 |        432        4.32       69.02
          4 |        397        3.97       72.99
          5 |        389        3.89       76.88
          6 |        202        2.02       78.90
          7 |        165        1.65       80.55
          8 |        153        1.53       82.08
          9 |      1,646       16.46       98.54
          A |         25        0.25       98.79
          B |         26        0.26       99.05
          C |          3        0.03       99.08
          D |          5        0.05       99.13
          E |          3        0.03       99.16
          F |          4        0.04       99.20
          H |         37        0.37       99.57
          I |          1        0.01       99.58
          L |          4        0.04       99.62
          N |          5        0.05       99.67
          O |          9        0.09       99.76
          P |          2        0.02       99.78
          S |          4        0.04       99.82
          T |         13        0.13       99.95
          V |          1        0.01       99.96
          Y |          1        0.01       99.97
          Z |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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