Frequencies for vin_lngt variable in vehicle dataset :

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          8 |          4        0.52        0.52
          9 |         10        1.31        1.83
         10 |          9        1.18        3.01
         11 |         35        4.58        7.59
         12 |          9        1.18        8.77
         13 |         48        6.28       15.05
         14 |          1        0.13       15.18
         17 |        648       84.82      100.00
------------+-----------------------------------
      Total |        764      100.00

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