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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         72        0.72        0.72
          0 |        276        2.76        3.48
          1 |        632        6.32        9.80
          2 |        315        3.15       12.95
          3 |        422        4.22       17.17
          4 |        466        4.66       21.83
          5 |        284        2.84       24.67
          6 |        213        2.13       26.80
          7 |        145        1.45       28.25
          8 |        140        1.40       29.65
          9 |        492        4.92       34.57
          A |        396        3.96       38.53
          B |        336        3.36       41.89
          C |        241        2.41       44.30
          D |        288        2.88       47.18
          E |        400        4.00       51.18
          F |        225        2.25       53.43
          G |        145        1.45       54.88
          H |        345        3.45       58.33
          J |        217        2.17       60.50
          K |        360        3.60       64.10
          L |        192        1.92       66.02
          M |        197        1.97       67.99
          N |        224        2.24       70.23
          P |        265        2.65       72.88
          R |        361        3.61       76.49
          S |        436        4.36       80.85
          T |        227        2.27       83.12
          U |        266        2.66       85.78
          V |         62        0.62       86.40
          W |        349        3.49       89.89
          X |        503        5.03       94.92
          Y |        311        3.11       98.03
          Z |        197        1.97      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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