Frequencies for first 10,000 rows of rept_cod variable in demo2007q1 dataset :

   Code for |
the type of |
     report |
  submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
        DIR |        849        8.49        8.49
        EXP |      8,001       80.01       88.50
        PER |      1,150       11.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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