Frequencies for pickle variable in hcris2552_96_2002 dataset :

     pickle |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      6,141       99.08       99.08
          N |         57        0.92      100.00
------------+-----------------------------------
      Total |      6,198      100.00

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