Frequencies for first 10,000 rows of rept_cod variable in demo2006q4 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        980        9.80        9.80
        EXP |      8,520       85.20       95.00
        PER |        500        5.00      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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