Frequencies for first 10,000 rows of retprn variable in nhamcsopd2004 dataset :

  return as |
     needed |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,179       81.79       81.79
        yes |      1,821       18.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016