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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          2        0.02        0.02
          0 |        232        2.32        2.34
          1 |        127        1.27        3.61
          2 |        114        1.14        4.75
          3 |         98        0.98        5.73
          4 |        225        2.25        7.98
          5 |        107        1.07        9.05
          6 |         51        0.51        9.56
          7 |        127        1.27       10.83
          8 |         62        0.62       11.45
          9 |        445        4.45       15.90
          A |        481        4.81       20.71
          B |        479        4.79       25.50
          C |        651        6.51       32.01
          D |        717        7.17       39.18
          E |        328        3.28       42.46
          F |        437        4.37       46.83
          G |        207        2.07       48.90
          H |        314        3.14       52.04
          J |        198        1.98       54.02
          K |        350        3.50       57.52
          L |        350        3.50       61.02
          M |        353        3.53       64.55
          N |        447        4.47       69.02
          P |        803        8.03       77.05
          Q |          7        0.07       77.12
          R |        436        4.36       81.48
          S |        386        3.86       85.34
          T |        312        3.12       88.46
          U |        312        3.12       91.58
          V |        169        1.69       93.27
          W |        168        1.68       94.95
          X |        196        1.96       96.91
          Y |        170        1.70       98.61
          Z |        139        1.39      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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