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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        133        1.33        1.33
          1 |         84        0.84        2.17
          2 |         57        0.57        2.74
          3 |         68        0.68        3.42
          4 |        141        1.41        4.83
          5 |         68        0.68        5.51
          6 |         45        0.45        5.96
          7 |         68        0.68        6.64
          8 |         29        0.29        6.93
          9 |        409        4.09       11.02
          A |        522        5.22       16.24
          B |        507        5.07       21.31
          C |        687        6.87       28.18
          D |        840        8.40       36.58
          E |        331        3.31       39.89
          F |        504        5.04       44.93
          G |        257        2.57       47.50
          H |        244        2.44       49.94
          J |        255        2.55       52.49
          K |        391        3.91       56.40
          L |        333        3.33       59.73
          M |        337        3.37       63.10
          N |        450        4.50       67.60
          P |        862        8.62       76.22
          Q |          3        0.03       76.25
          R |        436        4.36       80.61
          S |        438        4.38       84.99
          T |        283        2.83       87.82
          U |        346        3.46       91.28
          V |        192        1.92       93.20
          W |        172        1.72       94.92
          X |        228        2.28       97.20
          Y |        140        1.40       98.60
          Z |        140        1.40      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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