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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         49        0.49        0.49
          0 |        233        2.33        2.82
          1 |        517        5.17        7.99
          2 |        294        2.94       10.93
          3 |        424        4.24       15.17
          4 |        556        5.56       20.73
          5 |        298        2.98       23.71
          6 |        260        2.60       26.31
          7 |        149        1.49       27.80
          8 |        122        1.22       29.02
          9 |        462        4.62       33.64
          A |        353        3.53       37.17
          B |        360        3.60       40.77
          C |        244        2.44       43.21
          D |        294        2.94       46.15
          E |        393        3.93       50.08
          F |        246        2.46       52.54
          G |        164        1.64       54.18
          H |        305        3.05       57.23
          J |        187        1.87       59.10
          K |        391        3.91       63.01
          L |        212        2.12       65.13
          M |        207        2.07       67.20
          N |        253        2.53       69.73
          P |        238        2.38       72.11
          R |        389        3.89       76.00
          S |        424        4.24       80.24
          T |        246        2.46       82.70
          U |        263        2.63       85.33
          V |         67        0.67       86.00
          W |        374        3.74       89.74
          X |        509        5.09       94.83
          Y |        302        3.02       97.85
          Z |        214        2.14       99.99
          l |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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