Frequencies for first 10,000 rows of rept_cod variable in demo2009q4 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        514        5.14        5.14
        EXP |      6,702       67.02       72.16
        PER |      2,784       27.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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