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

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          7        0.07        0.07
           |          2        0.02        0.09
          0 |        959        9.59        9.68
          1 |        398        3.98       13.66
          2 |        278        2.78       16.44
          3 |        260        2.60       19.04
          4 |        450        4.50       23.54
          5 |        265        2.65       26.19
          6 |        199        1.99       28.18
          7 |        440        4.40       32.58
          8 |        146        1.46       34.04
          9 |        925        9.25       43.29
          A |        295        2.95       46.24
          B |        279        2.79       49.03
          C |        455        4.55       53.58
          D |        250        2.50       56.08
          E |        189        1.89       57.97
          F |        333        3.33       61.30
          G |        178        1.78       63.08
          H |        410        4.10       67.18
          I |          2        0.02       67.20
          J |        123        1.23       68.43
          K |        269        2.69       71.12
          L |        327        3.27       74.39
          M |        136        1.36       75.75
          N |        264        2.64       78.39
          P |        353        3.53       81.92
          Q |         10        0.10       82.02
          R |        392        3.92       85.94
          S |        250        2.50       88.44
          T |        193        1.93       90.37
          U |        224        2.24       92.61
          V |         87        0.87       93.48
          W |        106        1.06       94.54
          X |        145        1.45       95.99
          Y |        206        2.06       98.05
          Z |        195        1.95      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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