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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         87        0.87        0.87
          0 |        375        3.75        4.62
          1 |        915        9.15       13.77
          2 |        431        4.31       18.08
          3 |        428        4.28       22.36
          4 |        454        4.54       26.90
          5 |        353        3.53       30.43
          6 |        254        2.54       32.97
          7 |        175        1.75       34.72
          8 |        195        1.95       36.67
          9 |        556        5.56       42.23
          A |        428        4.28       46.51
          B |        342        3.42       49.93
          C |        227        2.27       52.20
          D |        243        2.43       54.63
          E |        394        3.94       58.57
          F |        213        2.13       60.70
          G |        163        1.63       62.33
          H |        309        3.09       65.42
          J |        188        1.88       67.30
          K |        337        3.37       70.67
          L |        157        1.57       72.24
          M |        130        1.30       73.54
          N |        174        1.74       75.28
          P |        192        1.92       77.20
          R |        306        3.06       80.26
          S |        483        4.83       85.09
          T |        227        2.27       87.36
          U |        204        2.04       89.40
          V |         31        0.31       89.71
          W |        237        2.37       92.08
          X |        393        3.93       96.01
          Y |        226        2.26       98.27
          Z |        173        1.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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