Frequencies for first 10,000 rows of vin_6 variable in vehicle dataset :

      vin_6 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |          5        0.05        0.05
          0 |        430        4.30        4.35
          1 |      2,416       24.16       28.51
          2 |      1,275       12.75       41.26
          3 |        865        8.65       49.91
          4 |        655        6.55       56.46
          5 |      1,406       14.06       70.52
          6 |        590        5.90       76.42
          7 |        391        3.91       80.33
          8 |        389        3.89       84.22
          9 |        600        6.00       90.22
          A |        153        1.53       91.75
          B |        134        1.34       93.09
          C |         69        0.69       93.78
          D |         58        0.58       94.36
          E |         50        0.50       94.86
          F |         22        0.22       95.08
          G |         25        0.25       95.33
          H |         66        0.66       95.99
          J |         33        0.33       96.32
          K |          7        0.07       96.39
          L |         30        0.30       96.69
          M |         48        0.48       97.17
          N |          6        0.06       97.23
          P |         18        0.18       97.41
          Q |          2        0.02       97.43
          R |         41        0.41       97.84
          S |         87        0.87       98.71
          T |         15        0.15       98.86
          U |         19        0.19       99.05
          V |          7        0.07       99.12
          W |          9        0.09       99.21
          X |         27        0.27       99.48
          Y |          6        0.06       99.54
          Z |         46        0.46      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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