Frequencies for first 10,000 rows of vin_6 variable in vehicle dataset :

      vin_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          9        0.09        0.09
          0 |        455        4.55        4.64
          1 |      2,460       24.60       29.24
          2 |      1,186       11.86       41.10
          3 |        868        8.68       49.78
          4 |        642        6.42       56.20
          5 |      1,301       13.01       69.21
          6 |        567        5.67       74.88
          7 |        416        4.16       79.04
          8 |        441        4.41       83.45
          9 |        662        6.62       90.07
          A |        152        1.52       91.59
          B |        146        1.46       93.05
          C |         90        0.90       93.95
          D |         55        0.55       94.50
          E |         49        0.49       94.99
          F |         25        0.25       95.24
          G |         26        0.26       95.50
          H |         33        0.33       95.83
          J |         33        0.33       96.16
          K |         28        0.28       96.44
          L |         24        0.24       96.68
          M |         35        0.35       97.03
          N |         15        0.15       97.18
          P |         27        0.27       97.45
          Q |          3        0.03       97.48
          R |         45        0.45       97.93
          S |         55        0.55       98.48
          T |         22        0.22       98.70
          U |         11        0.11       98.81
          V |         12        0.12       98.93
          W |         10        0.10       99.03
          X |         33        0.33       99.36
          Y |          8        0.08       99.44
          Z |         56        0.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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