Frequencies for pickle variable in hcris2552_96_2004 dataset :

     pickle |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,137       97.96       97.96
          N |        128        2.04      100.00
------------+-----------------------------------
      Total |      6,265      100.00

by Jean Roth , jroth@nber.org , 9 Sep 2018