Frequencies for s10_c1_4 variable in prds_hosp10_yr2010 dataset :

   s10_c1_4 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      1,238       53.29       53.29
          N |        750       32.29       85.58
          Y |        335       14.42      100.00
------------+-----------------------------------
      Total |      2,323      100.00

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