Frequencies for first 10,000 rows of vin_6 variable in vehicle dataset :

      vin_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          8        0.08        0.08
          0 |        524        5.24        5.32
          1 |      2,360       23.60       28.92
          2 |      1,181       11.81       40.73
          3 |        907        9.07       49.80
          4 |        604        6.04       55.84
          5 |      1,184       11.84       67.68
          6 |        621        6.21       73.89
          7 |        423        4.23       78.12
          8 |        448        4.48       82.60
          9 |        751        7.51       90.11
          A |        163        1.63       91.74
          B |        131        1.31       93.05
          C |        105        1.05       94.10
          D |         63        0.63       94.73
          E |         50        0.50       95.23
          F |         21        0.21       95.44
          G |         35        0.35       95.79
          H |         50        0.50       96.29
          J |         31        0.31       96.60
          K |         31        0.31       96.91
          L |         40        0.40       97.31
          M |         25        0.25       97.56
          N |         19        0.19       97.75
          P |         28        0.28       98.03
          Q |          4        0.04       98.07
          R |         23        0.23       98.30
          S |         39        0.39       98.69
          T |         14        0.14       98.83
          U |         25        0.25       99.08
          V |          9        0.09       99.17
          W |          8        0.08       99.25
          X |         16        0.16       99.41
          Y |         14        0.14       99.55
          Z |         45        0.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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