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

      vin_8 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         15        0.15        0.15
          0 |        192        1.92        2.07
          1 |        603        6.03        8.10
          2 |        275        2.75       10.85
          3 |        314        3.14       13.99
          4 |        418        4.18       18.17
          5 |        387        3.87       22.04
          6 |        263        2.63       24.67
          7 |        177        1.77       26.44
          8 |        136        1.36       27.80
          9 |        342        3.42       31.22
          A |        353        3.53       34.75
          B |        230        2.30       37.05
          C |        288        2.88       39.93
          D |        339        3.39       43.32
          E |        678        6.78       50.10
          F |        250        2.50       52.60
          G |        176        1.76       54.36
          H |        185        1.85       56.21
          J |        147        1.47       57.68
          K |        542        5.42       63.10
          L |        261        2.61       65.71
          M |        121        1.21       66.92
          N |        350        3.50       70.42
          P |        211        2.11       72.53
          R |        338        3.38       75.91
          S |        342        3.42       79.33
          T |        308        3.08       82.41
          U |        259        2.59       85.00
          V |        211        2.11       87.11
          W |        465        4.65       91.76
          X |        378        3.78       95.54
          Y |        275        2.75       98.29
          Z |        171        1.71      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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