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

 VIN length |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          4        0.04        0.04
          6 |          5        0.05        0.09
          7 |          5        0.05        0.14
          8 |          5        0.05        0.19
          9 |          8        0.08        0.27
         10 |         12        0.12        0.39
         11 |         19        0.19        0.58
         12 |          8        0.08        0.66
         13 |         37        0.37        1.03
         14 |          2        0.02        1.05
         16 |          3        0.03        1.08
         17 |      9,571       95.71       96.79
          . |        321        3.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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