Frequencies for f29 variable in hcris2552_96_2003 dataset :

        f29 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,631       26.34       26.34
          1 |      2,686       43.37       69.71
          2 |      1,876       30.29      100.00
------------+-----------------------------------
      Total |      6,193      100.00

by Jean Roth , jroth@nber.org , 8 Sep 2018