Frequencies for first 10,000 rows of rept_cod variable in demo2006q3 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        822        8.22        8.22
        EXP |      8,167       81.67       89.89
        PER |      1,011       10.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Dec 2015