Frequencies for vin_lngt variable in vehnit dataset :

 VIN LENGTH |      Freq.     Percent        Cum.
------------+-----------------------------------
          7 |          2        0.14        0.14
          9 |          2        0.14        0.29
         10 |          3        0.22        0.50
         11 |          5        0.36        0.86
         12 |          2        0.14        1.01
         13 |         16        1.15        2.15
         16 |          1        0.07        2.23
         17 |      1,362       97.77      100.00
------------+-----------------------------------
      Total |      1,393      100.00

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