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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         15        0.15        0.15
          0 |        156        1.56        1.71
          1 |        501        5.01        6.72
          2 |        255        2.55        9.27
          3 |        377        3.77       13.04
          4 |        475        4.75       17.79
          5 |        336        3.36       21.15
          6 |        230        2.30       23.45
          7 |        145        1.45       24.90
          8 |        140        1.40       26.30
          9 |        467        4.67       30.97
          A |        389        3.89       34.86
          B |        242        2.42       37.28
          C |        280        2.80       40.08
          D |        359        3.59       43.67
          E |        525        5.25       48.92
          F |        259        2.59       51.51
          G |        177        1.77       53.28
          H |        202        2.02       55.30
          J |        173        1.73       57.03
          K |        436        4.36       61.39
          L |        235        2.35       63.74
          M |        177        1.77       65.51
          N |        348        3.48       68.99
          P |        215        2.15       71.14
          R |        352        3.52       74.66
          S |        328        3.28       77.94
          T |        367        3.67       81.61
          U |        236        2.36       83.97
          V |        223        2.23       86.20
          W |        438        4.38       90.58
          X |        491        4.91       95.49
          Y |        263        2.63       98.12
          Z |        188        1.88      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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