Frequencies for first 10,000 rows of rept_cod variable in demo2005q2 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        624        6.24        6.24
        EXP |      4,540       45.40       51.64
        PER |      4,836       48.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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