Frequencies for first 10,000 rows of vin_1 variable in vehicle dataset :

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         12        0.12        0.12
          1 |      5,383       53.83       53.95
          2 |        946        9.46       63.41
          3 |        338        3.38       66.79
          4 |        466        4.66       71.45
          5 |         82        0.82       72.27
          6 |         14        0.14       72.41
          7 |          8        0.08       72.49
          8 |          7        0.07       72.56
          9 |        419        4.19       76.75
          A |          6        0.06       76.81
          B |         11        0.11       76.92
          C |         67        0.67       77.59
          D |          8        0.08       77.67
          E |          9        0.09       77.76
          F |         42        0.42       78.18
          G |          6        0.06       78.24
          H |          6        0.06       78.30
          I |          1        0.01       78.31
          J |      1,687       16.87       95.18
          K |        159        1.59       96.77
          L |          5        0.05       96.82
          M |          2        0.02       96.84
          N |          2        0.02       96.86
          P |          7        0.07       96.93
          R |         15        0.15       97.08
          S |         25        0.25       97.33
          T |         23        0.23       97.56
          U |          6        0.06       97.62
          V |          2        0.02       97.64
          W |        172        1.72       99.36
          X |          1        0.01       99.37
          Y |         48        0.48       99.85
          Z |         15        0.15      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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