Frequencies for vin_lngt variable in vehnit dataset :

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          5 |          1        0.08        0.08
          8 |          1        0.08        0.16
         10 |          2        0.16        0.31
         11 |          5        0.39        0.71
         12 |          3        0.24        0.94
         13 |          2        0.16        1.10
         15 |          1        0.08        1.18
         17 |      1,257       98.82      100.00
------------+-----------------------------------
      Total |      1,272      100.00

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