Frequencies for first 10,000 rows of vin_8 variable in vehicle dataset :

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        154        1.54        1.54
          0 |        745        7.45        8.99
          1 |      1,431       14.31       23.30
          2 |        607        6.07       29.37
          3 |        497        4.97       34.34
          4 |        470        4.70       39.04
          5 |        453        4.53       43.57
          6 |        228        2.28       45.85
          7 |        225        2.25       48.10
          8 |        205        2.05       50.15
          9 |        723        7.23       57.38
          A |        350        3.50       60.88
          B |        251        2.51       63.39
          C |        220        2.20       65.59
          D |        267        2.67       68.26
          E |        305        3.05       71.31
          F |        147        1.47       72.78
          G |        130        1.30       74.08
          H |        266        2.66       76.74
          I |          1        0.01       76.75
          J |        160        1.60       78.35
          K |        164        1.64       79.99
          L |        134        1.34       81.33
          M |         87        0.87       82.20
          N |        118        1.18       83.38
          P |         99        0.99       84.37
          R |        264        2.64       87.01
          S |        485        4.85       91.86
          T |        111        1.11       92.97
          U |        102        1.02       93.99
          V |         23        0.23       94.22
          W |        121        1.21       95.43
          X |        195        1.95       97.38
          Y |        194        1.94       99.32
          Z |         68        0.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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