Frequencies for first 10,000 rows of rept_cod variable in demo2004q1 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |      1,461       14.61       14.61
        EXP |      7,726       77.26       91.87
        PER |        813        8.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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