Frequencies for first 10,000 rows of rept_cod variable in demo2009q2 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        811        8.11        8.11
        EXP |      7,966       79.66       87.77
        PER |      1,223       12.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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