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

 VIN length |      Freq.     Percent        Cum.
------------+-----------------------------------
         17 |      9,015       90.15       90.15
          . |        985        9.85      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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