Frequencies for first 10,000 rows of vin_11 variable in vehicle dataset :

        vin |
character(1 |
         1) |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         39        0.39        0.39
          0 |        348        3.48        3.87
          1 |        402        4.02        7.89
          2 |        306        3.06       10.95
          3 |         79        0.79       11.74
          4 |        113        1.13       12.87
          5 |        259        2.59       15.46
          6 |        108        1.08       16.54
          7 |        154        1.54       18.08
          8 |        101        1.01       19.09
          9 |        575        5.75       24.84
          A |        668        6.68       31.52
          B |        302        3.02       34.54
          C |        603        6.03       40.57
          D |        276        2.76       43.33
          E |        333        3.33       46.66
          F |        360        3.60       50.26
          G |        299        2.99       53.25
          H |        421        4.21       57.46
          J |        253        2.53       59.99
          K |        347        3.47       63.46
          L |        408        4.08       67.54
          M |        338        3.38       70.92
          N |        352        3.52       74.44
          P |        183        1.83       76.27
          R |        311        3.11       79.38
          S |        382        3.82       83.20
          T |        140        1.40       84.60
          U |        500        5.00       89.60
          V |         23        0.23       89.83
          W |        176        1.76       91.59
          X |        123        1.23       92.82
          Y |        232        2.32       95.14
          Z |        486        4.86      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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