Frequencies for first 10,000 rows of i_f_code variable in demo2012q4 dataset :

   Code for |
 initial or |
  follow-up |
  status of |
 report, as |
   reported |      Freq.     Percent        Cum.
------------+-----------------------------------
          F |      9,948       99.48       99.48
          I |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Apr 2017