Frequencies for first 10,000 rows of vin_1 variable in vehicle dataset :

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        171        1.71        1.71
          1 |      2,051       20.51       22.22
          2 |        642        6.42       28.64
          3 |        527        5.27       33.91
          4 |        450        4.50       38.41
          5 |        175        1.75       40.16
          6 |        277        2.77       42.93
          7 |        158        1.58       44.51
          8 |        165        1.65       46.16
          9 |        904        9.04       55.20
          A |        169        1.69       56.89
          B |        121        1.21       58.10
          C |        889        8.89       66.99
          D |        111        1.11       68.10
          E |        122        1.22       69.32
          F |        471        4.71       74.03
          G |        166        1.66       75.69
          H |        234        2.34       78.03
          I |          3        0.03       78.06
          J |        569        5.69       83.75
          K |        165        1.65       85.40
          L |         77        0.77       86.17
          M |         42        0.42       86.59
          N |         37        0.37       86.96
          O |          8        0.08       87.04
          P |        143        1.43       88.47
          R |        294        2.94       91.41
          S |        251        2.51       93.92
          T |        262        2.62       96.54
          U |         41        0.41       96.95
          V |         82        0.82       97.77
          W |        139        1.39       99.16
          X |         31        0.31       99.47
          Y |         12        0.12       99.59
          Z |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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