Frequencies for vin_5 variable in vehicle dataset :

      vin_5 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         22        3.07        3.07
          1 |         10        1.40        4.47
          2 |          4        0.56        5.03
          3 |         13        1.82        6.84
          4 |          7        0.98        7.82
          5 |          4        0.56        8.38
          6 |          4        0.56        8.94
          7 |          6        0.84        9.78
          8 |          1        0.14        9.92
          9 |         48        6.70       16.62
          A |         60        8.38       25.00
          B |         50        6.98       31.98
          C |         41        5.73       37.71
          D |         60        8.38       46.09
          E |         47        6.56       52.65
          F |         45        6.28       58.94
          G |         20        2.79       61.73
          H |         11        1.54       63.27
          J |         15        2.09       65.36
          K |         18        2.51       67.88
          L |         38        5.31       73.18
          M |         13        1.82       75.00
          N |         21        2.93       77.93
          P |         33        4.61       82.54
          R |         28        3.91       86.45
          S |         18        2.51       88.97
          T |         13        1.82       90.78
          U |         17        2.37       93.16
          V |          8        1.12       94.27
          W |          8        1.12       95.39
          X |          7        0.98       96.37
          Y |         15        2.09       98.46
          Z |         11        1.54      100.00
------------+-----------------------------------
      Total |        716      100.00

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