Frequencies for first 10,000 rows of retprn variable in namcs2002 dataset :

  Return if |
    needed, |
     P.R.N. |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      7,532       75.32       75.32
        Yes |      2,468       24.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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