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

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          5        0.05        0.05
          0 |        175        1.75        1.80
          1 |      1,752       17.52       19.32
          2 |        757        7.57       26.89
          3 |        656        6.56       33.45
          4 |        665        6.65       40.10
          5 |        268        2.68       42.78
          6 |        335        3.35       46.13
          7 |        182        1.82       47.95
          8 |        212        2.12       50.07
          9 |      1,357       13.57       63.64
          A |        191        1.91       65.55
          B |        134        1.34       66.89
          C |        899        8.99       75.88
          D |        152        1.52       77.40
          E |         96        0.96       78.36
          F |        497        4.97       83.33
          G |        121        1.21       84.54
          H |        104        1.04       85.58
          I |         11        0.11       85.69
          J |         89        0.89       86.58
          K |         58        0.58       87.16
          L |        141        1.41       88.57
          M |         28        0.28       88.85
          N |         13        0.13       88.98
          O |         31        0.31       89.29
          P |        238        2.38       91.67
          Q |          2        0.02       91.69
          R |        194        1.94       93.63
          S |        123        1.23       94.86
          T |        168        1.68       96.54
          U |         31        0.31       96.85
          V |         96        0.96       97.81
          W |        127        1.27       99.08
          X |         43        0.43       99.51
          Y |         11        0.11       99.62
          Z |         38        0.38      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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