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

        vin |
character(5 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         50        0.50        0.50
          1 |         22        0.22        0.72
          2 |         31        0.31        1.03
          3 |         21        0.21        1.24
          4 |         40        0.40        1.64
          5 |         24        0.24        1.88
          6 |          8        0.08        1.96
          7 |          7        0.07        2.03
          8 |          8        0.08        2.11
          9 |        351        3.51        5.62
          A |        575        5.75       11.37
          B |        465        4.65       16.02
          C |        930        9.30       25.32
          D |        602        6.02       31.34
          E |        352        3.52       34.86
          F |        601        6.01       40.87
          G |        405        4.05       44.92
          H |        154        1.54       46.46
          J |        312        3.12       49.58
          K |        640        6.40       55.98
          L |        410        4.10       60.08
          M |        336        3.36       63.44
          N |        375        3.75       67.19
          P |        662        6.62       73.81
          R |        406        4.06       77.87
          S |        438        4.38       82.25
          T |        336        3.36       85.61
          U |        516        5.16       90.77
          V |        105        1.05       91.82
          W |        278        2.78       94.60
          X |        331        3.31       97.91
          Y |        102        1.02       98.93
          Z |        107        1.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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