Frequencies for first 10,000 rows of rept_cod variable in demo2010q2 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        553        5.53        5.53
        EXP |      7,593       75.93       81.46
        PER |      1,854       18.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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