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

      vin_1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          3        0.03        0.03
          0 |        108        1.08        1.11
          1 |      1,643       16.43       17.54
          2 |        713        7.13       24.67
          3 |        589        5.89       30.56
          4 |        513        5.13       35.69
          5 |        170        1.70       37.39
          6 |        354        3.54       40.93
          7 |        200        2.00       42.93
          8 |        181        1.81       44.74
          9 |      1,400       14.00       58.74
          A |        140        1.40       60.14
          B |        121        1.21       61.35
          C |      1,083       10.83       72.18
          D |        161        1.61       73.79
          E |        140        1.40       75.19
          F |        589        5.89       81.08
          G |        147        1.47       82.55
          H |        208        2.08       84.63
          I |          8        0.08       84.71
          J |         83        0.83       85.54
          K |        106        1.06       86.60
          L |        112        1.12       87.72
          M |         16        0.16       87.88
          N |         36        0.36       88.24
          O |         30        0.30       88.54
          P |        167        1.67       90.21
          Q |          1        0.01       90.22
          R |        253        2.53       92.75
          S |        182        1.82       94.57
          T |        234        2.34       96.91
          U |         21        0.21       97.12
          V |         84        0.84       97.96
          W |         97        0.97       98.93
          X |         59        0.59       99.52
          Y |          8        0.08       99.60
          Z |         39        0.39       99.99
          ò |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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