Frequencies for s10_c1_4 variable in prds_hosp10_yr2011 dataset :

   s10_c1_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      3,237       52.63       52.63
          N |      2,077       33.77       86.41
          Y |        836       13.59      100.00
------------+-----------------------------------
      Total |      6,150      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018