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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          1        0.01        0.01
          0 |        200        2.00        2.01
          1 |        114        1.14        3.15
          2 |         83        0.83        3.98
          3 |         91        0.91        4.89
          4 |        182        1.82        6.71
          5 |         79        0.79        7.50
          6 |         54        0.54        8.04
          7 |         94        0.94        8.98
          8 |         46        0.46        9.44
          9 |        421        4.21       13.65
          A |        530        5.30       18.95
          B |        462        4.62       23.57
          C |        641        6.41       29.98
          D |        739        7.39       37.37
          E |        363        3.63       41.00
          F |        509        5.09       46.09
          G |        236        2.36       48.45
          H |        266        2.66       51.11
          J |        226        2.26       53.37
          K |        393        3.93       57.30
          L |        399        3.99       61.29
          M |        314        3.14       64.43
          N |        444        4.44       68.87
          P |        873        8.73       77.60
          Q |          4        0.04       77.64
          R |        438        4.38       82.02
          S |        400        4.00       86.02
          T |        271        2.71       88.73
          U |        297        2.97       91.70
          V |        187        1.87       93.57
          W |        174        1.74       95.31
          X |        184        1.84       97.15
          Y |        157        1.57       98.72
          Z |        128        1.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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