Frequencies for vin_10 variable in vehicle dataset :

     vin_10 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         14        1.83        1.83
          0 |         27        3.53        5.37
          1 |         14        1.83        7.20
          2 |          7        0.92        8.12
          3 |          8        1.05        9.16
          4 |          8        1.05       10.21
          5 |         15        1.96       12.17
          6 |          8        1.05       13.22
          7 |          5        0.65       13.87
          8 |         13        1.70       15.58
          9 |         93       12.17       27.75
          A |          1        0.13       27.88
          B |         33        4.32       32.20
          C |         19        2.49       34.69
          D |         18        2.36       37.04
          E |         37        4.84       41.88
          F |         37        4.84       46.73
          G |         49        6.41       53.14
          H |         46        6.02       59.16
          J |         31        4.06       63.22
          K |         43        5.63       68.85
          L |         36        4.71       73.56
          M |         22        2.88       76.44
          N |         25        3.27       79.71
          P |         48        6.28       85.99
          R |         70        9.16       95.16
          S |         36        4.71       99.87
          T |          1        0.13      100.00
------------+-----------------------------------
      Total |        764      100.00

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