Frequencies for first 10,000 rows of vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          3        0.03        0.03
          0 |        732        7.32        7.35
          1 |        329        3.29       10.64
          2 |        225        2.25       12.89
          3 |        211        2.11       15.00
          4 |        361        3.61       18.61
          5 |        220        2.20       20.81
          6 |        147        1.47       22.28
          7 |        332        3.32       25.60
          8 |        113        1.13       26.73
          9 |        643        6.43       33.16
          A |        310        3.10       36.26
          B |        342        3.42       39.68
          C |        602        6.02       45.70
          D |        427        4.27       49.97
          E |        217        2.17       52.14
          F |        449        4.49       56.63
          G |        149        1.49       58.12
          H |        368        3.68       61.80
          I |          3        0.03       61.83
          J |        115        1.15       62.98
          K |        306        3.06       66.04
          L |        329        3.29       69.33
          M |        168        1.68       71.01
          N |        339        3.39       74.40
          P |        542        5.42       79.82
          Q |         16        0.16       79.98
          R |        417        4.17       84.15
          S |        329        3.29       87.44
          T |        208        2.08       89.52
          U |        223        2.23       91.75
          V |        122        1.22       92.97
          W |        127        1.27       94.24
          X |        196        1.96       96.20
          Y |        216        2.16       98.36
          Z |        164        1.64      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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