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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         73        0.73        0.73
          0 |        318        3.18        3.91
          1 |        762        7.62       11.53
          2 |        345        3.45       14.98
          3 |        521        5.21       20.19
          4 |        463        4.63       24.82
          5 |        359        3.59       28.41
          6 |        233        2.33       30.74
          7 |        177        1.77       32.51
          8 |        169        1.69       34.20
          9 |        513        5.13       39.33
          A |        434        4.34       43.67
          B |        329        3.29       46.96
          C |        238        2.38       49.34
          D |        263        2.63       51.97
          E |        376        3.76       55.73
          F |        206        2.06       57.79
          G |        173        1.73       59.52
          H |        285        2.85       62.37
          J |        197        1.97       64.34
          K |        372        3.72       68.06
          L |        186        1.86       69.92
          M |        162        1.62       71.54
          N |        227        2.27       73.81
          P |        228        2.28       76.09
          R |        313        3.13       79.22
          S |        433        4.33       83.55
          T |        240        2.40       85.95
          U |        212        2.12       88.07
          V |         59        0.59       88.66
          W |        275        2.75       91.41
          X |        394        3.94       95.35
          Y |        285        2.85       98.20
          Z |        180        1.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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